Overall we had a very good experience staying there 3 nights. The location of the house is perfect - nearby there are coffees, shops, restaurants, bus and subway and you can even walk on foot to the center. The room is ok, however have in mind the building is on a relatively busy street and as the windows are wooden (as expected in an old house :)) at night it is quite noisy. In addition there is a rooster who wakes you up a bit earlier than you would like to.
The whole interaction with the guys who live there was fine, they explained a lot before our arrival and on the arrival itself. After that we barely saw them.
Make sure you specify not only your time of arrival but also your check-in time in case it would be earlier than 2 p.m. We arrived at about 09:30 and the hosts knew that, however we could check-in at about 13:00 and after a long flight it is a bit inconvenient. They took our luggage though.
The wi-fi connection in the room was poor and we couldn't use it at all.
Overall we would recommend the place.