Guglielmo's place was perfect for us. My friend and I were looking for a place that was quiet but also centrally located and this really fit the bill. I have a hard time sleeping whether I'm travelling or not and I know the city centers in Italy can be noisy well into the night. Not so here, we were jut far enough off the beaten path to have quiet nights, but close enough to walk or take the tram to whatever we wanted.
The terrace was enjoyable and we were very near lovely shops, cafes and restaurants -- plus any historical sights we wanted to see.
Check in/out was easy and Guglielmo was always available if we had any questions or with any recommendations we needed.
A couple things I will note because they weren't obvious to me from the photos: there are steep stairs leading up to the apartment and also the apartment has two levels with a small staircase. The second thing is that there are two bedrooms, but only one has a door. The second room still has some privacy, it is mostly concealed by a closet, but is open. This was not a problem for us, but may be for some.
I recommend this place wholeheartedly and I would 100% stay again.