Alright, so I got it today (EB games had it in stock
) and it was not as glitchy as I expected (granted I'm still only in Saudi). All I got was some glitch where it lagged when I moved my mouse around, but there was a fix for that by editing the ini, so no biggie. The combat is better than I expected as well (my expectation were very low). It's less about cover-based shooting than most games with a cover system, and I found myself using the pistol more than I thought I would (silenced pistol is OP). The minigames are kind of hard, but that give me a sort of.. thrill, or something. I'm playing as the tech specialist, so I don't know if that's why it's easier.
I haven't seen any effect of my choices at all yet, and the story is kind of just "you are on a mission" with a side of "It's kind of a spoiler involving some guy named Leland". I can see why a lot of people would dislike the combat. If you really liked Gears of War/Mass Effect 2/Uncharted 2 combat, you probably wont like this very much.