Miro checked in face-to-face, and he explained us everything about how to use house and Wien. The house was so cozy and comfortable. The bathroom was quite small, but it was clean and it's okay one person uses it at one time.
There are one double-size bed in the room and two sofa beds in the living room. I really recommend Miro's house if you are 4 people! It take about 20 minutes to get into inner city of Wien but there is a tram station near the house. It was really nice!