Played this today, all maps on one server and I'm pleased to say I really enjoyed it.
It was rather fun, particularly the execution phase. Execution is basically when a team wins the round and the other team get killed in humerous fashion (i.e. the duck cannon, bull dozer thingy etc) but have a chance to escape, usually through a secret exit if they can reach it in time.
Weapons are great (with some TF2 influences by the look of things), but ammo takes too long to respawn.
You allways have a katana (unlimited) and a health gun (again unlimited ammo) with which to jab teammates.
Game mode wise, I think I only played 2 (I don't really pay attention when there are robots to kill) but the one with the big ball in the movie is basically extreme football. You have to get it to the opposing side then kill all the enemies before they escape the jail. Basic deathmatch style is the best though.
Once you die you go into the jail and can either escape every minute or so via a convoluted exit or have a teammate release you. But you only leave with a katana so you can find the enemy either stopping anyone from freeing you (I did that but the ones locked up got through the exit and killed me
) or massacring you as you exit; very fun though
There are perks to buy with points earned in game (i.e. kills etc) with usefull ones such as healing teamates passively.
Could only find 2 servers but they weeren't full and had enough people on for a good few hours of games.
Conclusion? Get it; it may be rather basic and awkward but my god it's a laugh