I played the game at a GAME Lockin event at my local GAME store (it's UK only gaffers) and I played through various different chapters (about 5+ levels), most of the levels were cut down but just enough to get used to the controls, etc.
I found that the controls are OK, it is a bit QTE at times (thankfully the game has the right analogue stick for combat QTE's), the only problem I had with the controls was the sixaxis motion stuff the demo unit didn't register most of my shaking.
The only problems I encountered were loading times, once it took 10 mins to load a section but afterwards it just streamed through. Also low polys and no AA was visible but framerate was solid.
The Section's I got to play were, Middle East Embassy mission, Interrogation 1, Jodie socialising with some kids as a teenager, meeting Willem Dafoe for the first time, CIA training, and the hunted section.
Unfortunately the Sony rep also had the endgame section on one of the dev units and pretty much ruined the entire game for me in 2 mins as he played through it, I won't spoil it but suffice to say it's pretty dumb
I enjoyed playing the game and will pick it up, the rep said there was over 14 different endings and that the game is pseudo open ended (it relied upon whether or not you abuse Aidens powers too much or you fuck up in general), but it is an enjoyable weekend game from my brief hour.