Some impressions after 30-35 minutes of play (take them for what they're worth, then!):
The game seems alright, but nothing special. The visuals are fairly crisp and pleasant, but there's barely any detail. Impressive crowds, though.
The controls are a bit sloppy. Alex has so many abilities and you can do so much that it is all a bit crazy and haphazard. Nothing about it feels refined. The overall experience of navigation is a bit janky, but nothing you won't get used to.
The presentation is alright - Alex smoulders with boring, seen-it-all-before rage and the conspiracy storyline seems marginally interesting. I'm keen to see where it goes, I suppose.
Overall, I don't think this is a stinker at all. Seems quite fun, actually. However, to compare it to a certain other game with a similar premise, it seems a little bit kitchen-sinky. You can do a lot of things, very fast, very violently (oh the violence *drool*) but nothing feels very focused or slick.
A must-rent, by the look of things (and I assume it only gets better...maybe); but don't get too excited - it seems too sloppy to be truly great.