We stayed for 3 nights in Kim's room. It's more like a hotel room where you feel comfortable than just a sleeping room. All parts of the accomodation were extremly clean. The bathroom which you share with the other guests from the room across, is spacious. The kitchen contains everything that's necessary.
Kim was very friendly, helpful and always available by phone for further questions.
I highly recommend to stay at Kim's place while visiting Rotterdam. Definitely 5 stars!