We had a very good stay at Krzysztof's house. Everything was perfect (beautiful and clean room and bath room), an electric kettle, cups, and snacks are provided in the room as well as shampoos, shower gel and towels. The bathroom may seem a little small for some people but it was perfectly convenient for us. Moreover, Krzysztof is very nice and always available if you have questions and he gives good advices and informations about the city and whatever you need. The only negative point is that the house is 40 minutes from the city by bus, however there are several bus stations near the house and the bus passes every 10 minutes so it is fine.
I strongly recommend it ! :)