Communication with Fabio and Rossana was alright. The flat is small, but was tidy and comfortable enough. Wifi connection worked all the time. In my opinion, the flat is not that much peaceful - firstly, there is a water heater in bathroom, which is really noisy (I had to use earplugs every night). It doesn´t help even if you close the door, because it´s made of drywall I guess - that does not stop the noise. Secondly you have to keep in mind that the room has only 1 entrance door right to the perron, which is placed on the roof of the building, but oriented into court, so you´ll probably hear other occupants of the house.
But overall, the place is nice, fabio and Rossana are cool and for sleeping over is the room just enough.
Great benefit is the location - right in the middle between city centre and main train station. Very comfortable + no need to use public transport (if you are able to walk).
The room is not barrier free - it´s placed in the 5th floor. Keep it in mind that every evening you´ll get a special "leg training" :)