Pros:

near perfect design, sounds, etc.

Cons:

the glitch on the chopper that can get you stuck if you go the wrong way. 

Conclusion:

yeah....I can't say anything that hasn't been said already. 

Pros:

- a neat take on a map/campaign
-sound/event triggers that I haven't seen before 
-cool ending fight
-creative concept 
-layout was pretty interesting
-play through changes with each play (I think?)

Cons:

- many tricky areas that seemed like ways to go but turned out to be invisible walls
- glyphs can be hard  find 
-so areas where dead giveaways to where you took them from (restaurant and gas station from no mercy, etc)

Conclusion:

(WARNING SPOILERS AHEAD) 
First time I played through was pretty cool. This area where you go down stairs near the road was kinda simple. Just a room with bodies on the ceiling and a bathroom with a glyph. down the alley way a witch was on the car and all it did was suddenly attack the car alerting the horde. Pretty cool. After looking in vain for the 5th glyph I died and had to restart. The first place I went was the area down the stairs near the street. HOLY FREAKING CRAP was i not ready for what happened. Completely different layout with witch trigger events. It was then I realized why this map is called Silent Fear. a combo of Sillent Hill and F.E.A.R. VERY CLEVER. I die again and played through but nothing really changed on the third time. Not sure if I missed something on the third go. But I had quit any way.
(END OF SPOILERS)

All I can say is this THE BEST map/campaign I've played on L4D Ever. I Can't wait to see what you come up with next. 

Pros:

-Very Creepy music and sound cues (The random distant "sound" at one point  in the first map sent shivers down my spine)
-great detail and layout of the maps. Not too confusing but not too easy either
-radio bit on second map was amusing

Cons:

-lacks creepiness in the finale
-voice acting on radio  when summoning rescue was really bad. (at least in my opinion)

Conclusion:

One of the best custom campaigns I've played. I hope to see more. A few more creepy sound effects would be nice though. [like that random laughing you sometimes here in the hotel (?) on dead air.]

Pros:

Nice design with the hotel being on the mountain side. adds tension when the tank could easily knock you off if you stand in the wrong spot.  Like the woods area though I see no point besides tank evasion.  A few good places for fighting hordes. 

Cons:

Whole hotel could have been bigger.  Not very many levels to run around on. Then again that it kind of the point of a survival map. 

Conclusion:

For a survival map it was very fun and probably the only one were I could play with bots and still get up to 7 minutes of fight time. (I normally don't do that well with bots)

Pros:

great design 
nice traps
new structures like the tall tower at the finale

Cons:

finale area seems too cut off and I find it funny that you have a tall tower that you can't uses during the finale battle. At least I couldn't at the time. 

Conclusion:

Very Fun Map