I finally broke down and bought it for the 360.
I've literally played from 2:00pm to 10:15pm every night [I bought it two days ago] (My brother leaves at 2 for work and gets back around 10). I am enthralled in the deeper, darker, story. I love the loyalty quests AND the MQ. A lot of the plot turns took me by surprise. Pretty much all of them, actually. I don't like the limited weapon choices I get as a sentinel. But I do love my tech armor. Good. Game.