I'm loving this keep thing. It was tedious going through all the choices, but well worth it, since I lost all my data and would have to go through both games to get it back, like I did with Mass Effect. Except I'm not doing that with dragon age, thanks to 2. So this was a great idea. Very cool.
Witcher could really use this. Also great for if you just want to try different stories without playing the games again to see the differences. Gotta tip my hat to Bioware on this one. Assuming everything works smoothly, that is.
edit: Also, I'm a console peasant switching to PC again before the year's out, so this saves me some time, not having to take saves from the console to the PC, if I had them that is.