I loved it!

It took me about 15-20 hours to complete on medium difficulty but I found nearly 100% of the hidden unlocks and completed almost all of the side missions. I thought the graphics were OK but it's the same with these games that are released on the 360, they have only 9GB on their disks we have the potential of 50GB, so again PS3 users lose out. It plays like Chornicles of Riddick (which doesn't suprise me consideing they're made by the same ppl) but CoR is much better suited to the stop and start gameplay because it was set in a prison. Overall (in my opinion) it's the best PS3 game I've played so far.
