Unfortunately we had a bad start because the cleaner was sick. The bathroom and the bathroom mat were very wet. We had to clear away the laundry from the previous guest ourselves. Furthermore, after a short shower it turned out that the shower was clogged. Luckely Peter send someone to fix it quickly. There is a significant temperature difference up and downstairs. Also downstairs had a real "basement smell". The area is very cool, but don't expect a silent neighbourhood. It can be very noisy in the evening (I think it's close to a student apartment where every evening is kind of a party). Especially in the weekends it can be noisy at night. Nevertheless we had a fun time exploring Oslo. Grünerløkka is really cool.