I completed this game earlier today and I gotta say it was brilliant! I don't understand how freezing could be an issue, it froze once for me during a loading screen, and also there were several bugs here and there, but that did not at all ruin the game for me, and for 14 pounds, I find it hard to argue. The graphics are also good with all the gore included XD
The story was great and the side missions were also exciting, you could wonder off into a building and have an extra hour or two of gameplay with the amount of things to do. Also, prior to Oblivion, each person you talk to has there own personality, background and role in the game, most of which will give you missions to complete and earn rewards and XP.
I'm going to be playing this again, mainly because I didn't have the chance to do everything, I can choose a different storryline this time!