I stayed Sonja's place for about two weeks. It takes 20 - 25 minutes to the city center. Her place was clean, bright and large enough for two or three people to stay (for me it was a little large room). I felt her kind hospitality also from blankets, dishes, coffee machine, and tee.
We misunderstood a little bit about my arrival time, so I could not have the key for the room, but when I called her, she resolved soon this problem, so it was not a big problem.
I recommend her.