Didn't think I'd ever go to Norway, let alone Oslo, but since my brother married a Norwegian blonde, it was kind of necessary! Stayed at Hotel Continental Oslo which was nice enough. I like Oslo actually, quite a neat place, very well kept and designed. It reminded me of a massive IKEA town, not just inside, but also outside. No offence though, I like IKEA! The only downpoint I would say was that some of the Norwegian people I met were a bit too smug and obviously loved themselves quite a lot. The staff at the hotel were an exception to that however. I'd recommend you give this a try!