We were at Martin's place for few nights and it was a nice experience. The room is simple and clean with own bathroom. There is also a kettle with teas and coffee which we use a lot, the bed is comfortable too. Also communication with Martin was perfect, he answered quickly and was there always for us.
Only weak side is the location, that it is a little bit far from the center, but the connection is good (about 8 min from the train). And also there is no kitchen yet.
Overall I recommend it a lot, hope I will come back soon:)