I picked up the game for $20 from best buy:
http://forums.anandtech.com/showthread.php?t=2091111
The story is ridiculously cheezy, and also IMHO overwhelms the game. You literally play the game for only like 5-10 mins at a time, then get an extended cutscene. So it's like 10 mins playing, then 5-10 mins watching a cut-scene. Rinse & repeat...No wonder its on 3 DVDs. I also was somewhat annoyed with a couple of the characters ("Hope" & "Snow"), but it's early yet so maybe they'll come around. The graphics are pretty good.
Fighting takes place in a semi-turn based format but has a time element (i.e. you can't just take your time deciding what to do). I have limited options so far, but I expect that's because I'm still very early into the game. I've only played it ~ 4 hrs, and so far it's been really easy and totally scripted.
I hope it gets more open-ended & challenging.