I have a low opinion of A:CM overall, but there was still fun to be had with it... even on consoles. In 4 player co-op, certain sections were a griefers nirvana. Using the hand welder to seal other players in a room with an unkillable monstrosity or using them as bait to distract blind, exploding xenomorphs were some of the most enjoyable moments I had with a game that year.
Don't be afraid to share your opinion, half the people shitting on the game have probably never even played it.
I had a friend who legitimately enjoyed Superman 64. By all means, someone's trash can be another man's treasure. But the consensus is still that the game was, if not outright terrible (I personally think it was), it was a far cry from what was promised and presented to us before release, hence more people are upset with the deception and misleading advertising tactics than the actual game itself. Bad games are a dime a dozen, but Colonial Marines was straight up misrepresenting the actual game.
Many of my buddies agree, though, that practically ANY game can be "the best of times" if you play the game together, relax, bring out some snacks and beer, and just enjoy it in a Mystery Science Theater 3000 kind of way. Lord knows, that was the only way I was ever going to enjoy Resident Evil 6.