It was very pleasant to spend a week in Paolo's studio. Paolo is very nice and helpful, his apartment is as described, clean, very well equiped and located.
The only thing I haven't seen mentioned is the noise. The studio is very well isolated from the loud street, but the wall with the neighbor's flat is super thin. He sometimes starts to talk or turns on the TV at midnight, which can be bothering if you are sensitive to sound. My friend wasn't bothered at all, so if you are not very sensitive to sound, it shouldn't bother you.
Don't hesitate to stay at Paolo's studio, it's really great and we can't thank Paolo enough for his nice welcome and precious help.