Pros:

+Lots of zombies
+Lots of zombie spawns for hordes from every direction
+Nailed the whole HL2 thing XD
+LOVE the epic music

Cons:

-Too many health kits
-Would be more fun if they were in saferoom only
-Agreed that the storm comes out of no where

Conclusion:

Great map! I really enjoyed the HL2 feel. In the burning building i knew to walk around the boards that break. All my friends fell right though XD. 

Pros:

+OMG ITS EFFING TF2!!!!!!!
+Constant zombies always make it that "uphill battle"
+So much fun to play
+Plenty of replay value

Cons:

-derp

Conclusion:

Best map I have ever played on L4D2! EVARRRR!!!!

Pros:

+lots of zombies
+finale was challenging and exciting
+good environment variety
+great detail on most of the sections.

Cons:

-the building has everything!! (mall, office space...)
-definetly needs some streets and street lights.

Conclusion:

Overall, great map. Lots of variety, but it is one building. (i have never seen a building with all of that) It looks great and is really fun to play.