Saw this on the Playstation Plus catalogue and gave it a go. Really enjoyed it, so bought it on the PC. My other half and I have had a lot of fun in Coop, fighting for control of the camera but not for the loot as it's communal.
Very chilled game, that while repetitive, has given us a good amount of hours enjoyment already - wish there was more coming for it though. Guess I'll have to await Dysplaced.