The place: Really nice and comfortable. It's on the 4th floor but it has an elevator and it works perfectly. It has everything you need for a short-medium stay.
The location: very good. It is a 15 to 20 minutes walk from everything you need to see. If you don't want to walk, there is a bus stop just in front of the apartment and a metro station 2-3 minutes away.
The host: Lorenzo was very attentive. He met us at the door of the apartment.
In Summary: a pretty good experience would repeat if we had to go back. Thank you Lorenzo!