I'm just glad you have a broad spectrum of opinions now.
The ratio is about right, because the game really does fail on a lot of what it promised to deliver.
But I'm just sharing my experience, because the magic is in the multiplayer. Lots to do, and bugs yes but patches and DLC should make a decent product great.
I don't regret buying this game strictly because of the mp, though I'm enjoying the coop for what it is (which isn't much.) I've already had some of the most awesome Aliens moments in the mp, more than I've almost ever had in a game, and I'm so happy I did. It does get it just as close if not closer than any game in the past, and sometimes it genuinely shines.
Dat all. Good luck with your decision dude, hope we were helpful.