Overall an engaging 3rd person hack and slash action adventure with puzzles (generally lever-pulling and standing on pressure plates).
CONS: When I first played this game I thought more care could have been put into the camera control; it's not that there are awkward camera angles (the player has full control) rather it just seemed a little bit too swift moving and with no option to slow it. The only other gripe I have is that it is not always clear where you can go. For example, a piece of grass may block your progress but on the "Marauder Camp" level I could walk straight through the trunk of a huge tree!
PROS: Very good story with intersesting characters and an unexpected twist. Decent enough graphics (except for the cutscenes - some of the characters look so daft it's funny; watch out for dyed black moustache guy), good music though. Brutal combat (IMO better than Assassins Creed. Lots of collectibles.
It took me about twenty hours to complete and for under a tenner I'm glad I bought it.