Pros:

Long, fun gameplay
All 8 survivors
Midnight Riders, nuff said
A useful tutorial level

Cons:

A giant building would appear and then crash my game
Lots of tanks
AI is sometimes buggy, infected and survivors
Buildings like the flamethrower and other objects can instantly kill survivors

Conclusion:

A very fun and fast-paced game, but there are the bugs and problems with it, hope it gets fixed!