Karen is a lovely host and very warm person. The house is very clean and you are expected to follow a few basic rules which should be absolutely no problem for any polite person (no shoes in the house, leaving behind a clean bathroom for the person you're sharing it with, closing doors quietly etc). The room was spacious and the bed very comfy. I had an event in the 3 Arena, which you can take a long, beautiful walk to along the beach and through a park (~45min). City center is a short train trip away (few minutes).