Pros:

Well designed
Custom vocals
Fun gamemode
custom world physics
Narrow hallways = Melee effectiveness
Forces you to keep returning to one spot and maintaining it then set off to another.
Intro is nice as always
custom music

Cons:

Several Bugs (I know its beta but these need to be pointed out)
When lifting the door, if you are too close, you get pushed outside. and with all the baricades in place you cannot reenter the house.
The map itself IMO needs to have a decent cinematic crescendo event (Other than random tanks appearing in the doorways and the initial button press)
The ending kills everyone, forcing you to replay the map, and hindering the ability to return to the lobby to choose another campaign. (When on LAN parties for example you would have to rejoin with everyone to start a new map)
2 more that aren't worth mentioning

Conclusion:

The classic survival mode and defense game mechanics used in building maps are always rewarding. However the bugs pointed out give room for improvement. The custom aspect of the map was rather unique as the gamehelper even showed you where to go and what to do, making easy for first time players of the map. However the 'ending' of the map was rather anti-climatic seeing how you just ventured 15 minutes slamming boards on the wall and killing gobs of zombies simultaneously, finally got everything boarded up, and you're safe.... until everyone drops dead before the credits come along. The replay ability is very low though since it  is always the same each play through, excluding what the player does different. Nevertheless it was still an enjoyable map. 

Pros:

Great custom dialogue
Very nice decoration
Love the idea that the survivors just came from the crash course campaign.
The graffiti was rather interesting

Cons:

Finding my way out was challenging because the arrows on the wall in the church sent me in circles.
The flashlight is ineffective due to the dark textures and dark areas, suggest world light (Such as abandoned lanterns or truck lights)
Theres 7 different places where the bots glitch, On the area where you climb the roof to the attic, the bots follow you but they go downstairs. the other 6 are places where they get stuck (as well as human players).

Conclusion:

This campaign is as appetizing as the first one. Although one may get lost [for about 20 minutes] the map is very enjoyable in singleplayer as there are more times that the survivors have conversation, thus giving the feeling you are actually there. The rest was covered by the previous reviews.

Pros:

Well Built areas.
Natural looking prop scenes.
realistic placing of weapons.
Scarcity of weapons forces to change tactics.

Cons:

(Could be just my pc) Skybox missing texture in some areas
The Dumpster crane kills all bots when they try to follow you
The staircase leading to the top building where the dumpster is, is nerve racking to maneuver on (Turning every second)

Conclusion:

Great for a campaign. I've seen few that look natural these days. Although the few errors and mishaps its a map that made me think where I was going. A lot more than I can say for the standard L4D2 campaigns, where everything is right in front of you. This map you have to scan the surroundings to find the way out. Overall, This is my favorite addon campaign.