Pros:

- PURE Quality, nothing is glitchy or irrelevant.
- Replayability, such open style map layout its is going to be VERY hard to get bored of this.
- A classic style L4D1 finale, and they were/are always the best.
- Being able to jump upon almost anything (rocks, low fences, car to truck, roofs etc giving a sense of realism (eg in 'real' life you WOULD be able to climb over a 2 foot bolder or hop a fence or jump through a hedge (in many maps this is often used as an un-imaginative way to set the maps boundaries, in this it is not needed.
- Alternate routes that interlink with each other.
- Perfect length, it could have been longer but wasn't made so JUST for the sake of it.
- Sceneary had a true realism about it eg Entering the small seaside village looked as REAL as a source engine game could be.
- Not too many or too little ammo piles or kits etc, so very well balanced.

Cons:

- Did seem a little TOO easy on advanced, felt like normal.

Thats it as far as we could tell.

Conclusion:

Theres not much else to say other than SUPERB !!!

This map has it all - great map, open/alternate routes, great AI (even bots are babreable), realy enjoyable gameplay, the finale style that made L4D1 so much fun, replayability.

We'll be playing this for some months to come thats for sure. Going into the dedicated servers rotation of addon maps for sure.

Loved this in L4D1 - love it just as much in 2.

one of the best !!

Pros:

See lengthy write up Below

Its just great and well - its just great :D
(i can't use the word awesome, i hate it)
The custom audio for weapons and skins for survivors as well as 1st aid (i don't know if you had more as i have custom skins for ALL SI and a sheva replacement skin for rochelle damn she's ugly)
So besides the skins etc (which if not there wouldn't detract from this campaign.) All i kept doing whilst playing this was expressing how unique yet still recognisable it was.
It 'felt' set in the current area of L4d2 (the south) but with a lot of attention to detail. eh whilst running through trees, only the large trees stopped you not EVERY damn one or being able to climb over almost anything yet not go out of the map - i'm sure this would be amazing for versus (if i played it).

In a way its a shame this didn't come out a month ago as there is quite a big campaign out atm, but this is still just as good (especially as it probably didn't take 2 years to make :P with about 10 people haha

Thank you SO much.

Cons:

need to play more - but i'll add them asap

Adding custom skins and audio for weapons etc is a brave move BUT a few people don't have machines powerful enough to compensate, it would be better to add them as seperate options and therefor not gain an negative feedback from them.

So based on that I CAN'T use the addons as a negative vote agains't this campaign as they can be removed (please do so :) 
I'll be positive and vote it as i experienced it.
its extremely good.
Lots of work in it

Conclusion:

Loved it - This is a quick vote as i did a write up.
Ill return with a full on review.

Despite the problems caused by skins or audio (i didn't notice but obviously some did) i can use that as a reason to down the quality of this campaign.

its extremely good.
Lots of work in it - things like the custom camper van done out to look like its been through a zombie apocalypse, superb - We are seeing so many amazing campaigns i don't play valves and haven't for months - this is another reason not to play them.

Pros:

+Highly detailed with extremely well thought out panic event's and related rooms / areas.

Cons:

-Bots have some issues on early ladders.
-Only bad thing is the terrible vote (30%) which has kept the overall vote down. And that is really only about the bots being useless, but hey aren't they always?

Conclusion:

This is a MUST campaign, simple as that.
I am surprised it has not had similar attention as other recent campaigns, as this is as good as the most popular atm.
Maybe due to some early extremely harsh unrealistically low votes has put people off.

Giving such low votes with hardly any detail is as good as sabotage votes.

This is most definitely NOT a 25% or 30% campaign, maybe the people were unhappy not having anyone to play with at the time?. And if the 25% person found  it hard there is an "easy" setting for new players :) . Also having at least 3 friends help with idiotic bots.
This, without doubt, is easily a 90% overal quality campaign. (There are certainly far worse that have received 20% more than they should (*cough* 2 evil eyes *cough*).

Don't miss out - judge for yourself.

(This review is mainly to encourage others to try this, hence the lack of 'useful' tips. though having seen the LOW SABOTAGE VOTES this is almost a full write up :) )

Thank you very much.

Pros:

Original
Un-like a number of recent "themed" campaigns this has re-playability rather than just "ooo ah, pretty. ok that was fun, whats next?"
In the 1st safe room, bots didn't collect 1st aid on leaving... 
EVERYTHING related to the haunted theme is just great, classic stuff, reading below an audio accompanyment would be great. an easy 1 is to place a number of zombies in a room they cannot escape so they bang alot, adds atmosphere with little effort. Maybe a few floating boomers and smokers/hunters screams would also be welcome - heck scare us stupid :)

Cons:

Not Finalised
As above
It just needs the obvious final tweaks.
Maybe the Haunted House as it is, is enough as the beginning and middle of the campaign? Or the 1st part could  be shortened? something to get 'us' into the excellent haunted house a bit quicker, even if the 1st part is tweaked a little to be a bit more of an intoduction OR make the whole lot a 'ghost'/haunted theme?

Conclusion:

see below info, seems daft to type it all again.

PLEASE FINISH - loved it.

Thanks

Pros:

-Cant Fault It, well polished and sensibly layed out.
-Perfect Length (and thankfully re:underground part, no sludging through slow water for more than a few seconds!
-Finale is a great enslaught (4 team player and "they" gave up after the 8th attempt on NORMAL !! Loved it myself.
-Challenging with some nice touches that require you to pay attention, its all to easy to leave someone behind or get left behind, especially with the 'odd' hole in the floor (i'll spil it if i say why this was a Pro.)

Cons:

-Non, oh i'll have to download the Final version :) if thats a 'con' :P
-1 thing I would like to do would be to throw bile off the upper region of the finale to 'force' zombie suicides, it would make "sense" (as they do in (forgotten the map but the 1st original valve l4d2 campaign. Apartments? (sorry i dont play them now there are so many great free add-ons.)

Conclusion:

Challenging, varied terrain yet not "2 evil eyes eh? wtf? we were in a swamp now its a city?!" type "varied" - Each region made seemles sense.
Another in my top 5, which maybe becoming around 7 in the top 5 now :P

Pros:

-Challenging even on Normal.
-Well polished, and a generaly good team campaign.
-Lots of areas to camp out but no spot is 100% safe.
-Alternate routes, to me its a must, 1 route wonders are a waste of possibilities.
-Didn't notice Bots being any more annoying than usual
-Better than many 'Final' maps.
-ALL that campaign for such a small file!!?!! with skinned 'party goers' as well. My team couldn't stop commenting on the nice dresses's :D

Cons:

-Being Beta it means I'll have to download the next 2 or 3 updates, cant think of anything else that is wrong. Oh yeah i never got on the 'escape' vehicle at the end... thats not realy your fault though :)))

Conclusion:

THIS is how we should experience a Beta Map - not work out bugs that are obvious if the 'dev'er actually play their own map. Excellent !!
If there is more to be added or changes it is easily up there with the best (Fav top 5)
Also @ FaizalFrancis - the finale is technically the entire floor! (Sky Mall), well 2 floors if you consider the whole area of a huge building, including offices, swimming pool and wide corridors, only the doorway to the "pad" could be considered small, and how many football field size heli pads do you know of on top/side of a building? Its Possibly the largest finale area (indoors) I have come across.

Pros:

REMOVED

Cons:

REMOVED

Conclusion:

I'll re-instal L4d1 and play this in the correct version, not being a 'casual' gamer i'm aware of not voteing wrecking your overall  rating.
lucky i'm not a "casual gamer" as I would have probably given a stupid ill informed vote but instead it took quite a bit of tweaking to get this to work in L4d2 and as said above I experienced a true feeling of L4D1 ness more so than the official L4D1 maps converted to L4D2.

So this dosen't lose out on my mistake of seeing a very good looking map and quickly trying it out to later realise it was meant for L4D1 i will say 75%

Pros:

-Perfect
-More Enjoyable than pre-bundled vALVE campaigns imo.

Cons:

-Wish I could make something so good :)
-I may not have played enough, but I can't find a problem.

Conclusion:

If there is 1 add-on map to convince people they are worth trying, this is it!

Pros:

-Everything

Cons:

-Nothing

Conclusion:

As I have already submitted a Pros/Cons on the L4D1 version i guess all i could say that was better in this was its for L4D2 as well :)
1 of the 1st add-on maps I was truely amazed by and still is. (Still in my top 5)

Pros:

-Detailed and highly polished
-Great to play
-Everything (literally, be it hordes, tank spawns, 1st aid etc etc is ALL well placed and thought out.
-Great variation from level, indoors/outdoors, rooftops etc
i could go on....

Cons:

-Nothing, its enjoyable and not just for 1 play through.

Conclusion:

Download it.
Its 1 of the best (in my top 5)

Pros:

-Highly Detailed
-Day & Night
-Nothing seems out of place, pointless or ugly
-Its truely faultless
-Perfect length (if after a death in the team we we're happy to restart.)
-Though not essential the maps benefited from you choice of weapon (eg Sniper was useful in 1 map but not appropriate in anothe). 
-The mounted gun was actually USEFUL! (well placed)

Cons:

-There was SO much (quality space) i'd have liked to have had alternative routes, (interchangeable) just becuase it was possible, especially in town.

Conclusion:

Download it, is realy all thats needed to say. Better than some original L4d2 maps. We found ourselves pointing out various parts (hordes attacking or not) Although there is day & night, town & country nothing was out of place.
Not exactly a 'con' but turning the fire/gas off didn't seem to be of benefit, i may be wrong. I'd say 100 but that wouldn't leave room for improvment, i'll be suprised if I gave any map this score and my favourite L4D2 original wouldn't get more than 96 :D (many a lot less based on enjoyability). Thank You!