It's a pretty decent game... If you spent a lot of time playing L4D or L4d2 and thought that game had great replay value then you will probably think the same for this game.
Graphics are great, gameplay and mechanics are fairly solid, decent sound.
My biggest gripe with the game is that there is no progression aside from finding weapons and combining those weapons to get other upgraded randomized weapons.
Game would have been much better with unique talent trees for each character and character progression (which could serve to better separate the heroes into different roles or specializations). A lot of people disagree with me on this but I think it would increase the replay value.
As of now I have 11 hours played on the game, I'll be very surprised if I get past the 25 hour mark before uninstalling the game.
