My favorite PS3 game that was short lived was Lost Planet 2, played the whole campaign co-op with a friend and it may have lasted 8 hours, but it sure was a blast, from the boss battles to the combo attacks with a friend for certain weapons. They definitely had something going with their co-op campaign, but everything else in the game fell short and underwhelming. I can understand why the game flopped in the end, but that one part of the game I enjoyed was my hidden gem for Lost Planet 2.
All in all, if you can find it used for $10, it's definitely worth picking it up with a friend just to play the campaign together in co-op, other than that, there isn't much to it than to add it to your shelf of games.