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.