I got this from my Lovefilm account, as I didn't think I would like it, and was originally unimpressed with the demo. That being said, I decided to give it a chance, based on what my friends' experiences and anecdotes of the game. I'm about 2-3 hours in, and I must say, I'm pretty disappointed.
It just seems like a joke that I don't get.
It's repetitive, silly to the point of dullness, and just generally boring. One button bashing, Stephen Hawking would rule at this game. The dodging mechanic isn't bad, but the combat is far too fast, far too boring and skill-less. It doesn't feel like I'm particularly doing anything, rather just smashing buttons.
The soundtrack is also ridiculous. Not to the point of ironic delight, just to the point of it being dirge. So much so, I turned it off after about 30 minutes of grim realisation, and put on some hardcore metal. I hate Metal, but it seems to fit in well. The smooth jazz tones may work in Marvel vs Capcom, but here it just drags, and turns the game into an out-of-place oddity.
After playing God of War III, this is a big step down. Where God of War had panache and stylish brutality, this replaces these with OTT weird angel-looking things, and a plot that makes no fucking sense. I'm going to keep playing, but not for much longer.