Pros:

pretty long maps, well detailed, good variation. plenty of ammo and health kits, good amount of hordes at the right times

Cons:

mazes and back & forth action is a bit predictable

Conclusion:

not overly challenging, but i played on normal and it felt pretty right.  Lots of fun, I really enjoyed the long maps and I liked the variation in the maps.  Most of the time it's light out which is a nice change from all the really dark maps.  All in all, a very fun map.  Pretty good ending too.

Pros:

challenging
ammo/guns spread out, not a lot of pipe bombs/molotovs
i died a lot

Cons:

a little confusing
a couple bugs. Last map respawns don't  work, have to exit and restart

Conclusion:

played it on normal, and died like 7 times at least.  When captured by a smoker or hunter, you can be killed, not just incapacitated; same with tanks, they don't go looking for fresh blood when you go down, just keep at ya.  Bots aren't the best, but not terrible.  I like the maps, got a little confused and the last 2 or 3 are very short, but overall very entertaining.

Pros:

challenging and fun. totally different than the same ole.  Love the portal feeling

Cons:

i want more!  Can't wait for the other 2 maps

Conclusion:

If they ever do a L4D3 i would love if they went this direction with it.  This is an increbile map IMO.  Loved it.

Pros:

incredible detail and color
the best looking map i've seen
crazy hard but made sense
very fun

Cons:

very hard in single player mode, the finale was tough

Conclusion:

love this map, might be my favorite. very excellent. Obvious that lots of work went into it. Very lighted areas into dark, into rain, very diverse. Extremely enjoyable. thank you!

Pros:

great visuals, love being in the light some of the time, not all dark like many maps. very challenging

Cons:

had trouble figuring our here to go in the finale, dies like 3 times before figuring it out, but that's really my bad, no the maps!

Conclusion:

excellent campaign.  a lot of fun.  Thank you, thank you

Pros:

long 1st map fun - very fun
love getting the auto shotty early
lots of hordes and others milling about

Cons:

water scene is tricky, but adds an element, makes you turn off the electricity faster and race to save everyone if you're playing alone - so actually kind of cool

Conclusion:

really enjoyable - very thoughtful.  I got a lot of enjoyment from this, look forward tot he finished product.

Pros:

loads of fun, I played it several times.  Very unique, nice change of pace from the norm

Cons:

not quite Mario  enough as far as gameplay goes

Conclusion:

Definitely recommended, the 85 rating is too low as far as I'm concerned

Pros:

anything HL2 is awesome, well created. Loved the guys that left behind health kits and molotovs

Cons:

none, I don't have any probs

Conclusion:

loved it, played it twice in a row