I also didn't like that the world was somehow from the old Norse myths, but with enough differences that it felt totally wrong.

Then there were the small annoying things, like not being able to save when you really needed to (aka when there were enemies in the neighbourhood), and that it took too many clicks to save in any file except the quicksave. The torch light spell was too dark, needing perfect pitch to get the bells in the right order, (for "perfect" read "a lot better than what I have"), not being able to see all the mirrors that needed to be lined up during the shot ... My blood pressure is rising.