Kim and Tom are wonderful, warm and super friendly hosts. Though I didn't spend much time there, I really felt welcome at their place and everything was taken care of; even the coffee supplied. :) Communication was super easy and reliable. The room was clean and as shown in the pictures, located in a wonderful old building in a quiet small street in the 15th district. The bus station is just a few meters away and the bus takes you to all the districts closer to the city center within a few minutes and also connects you to the subway stations close by.
Overall I can highly recommend to stay at Kim's place and would come back anytime!