We stayed at Antonio's place for 3 nights. We didn't meet Antonio but it was really easy to communicate with him. He responds very quickly.
The place is spacious and has 2 bathrooms. We travelled with four people so it was really nice to have this much space.
The apartment is really close to Bologna metro station so you can get around Rome very easily. We took the train at Tiburtina station and this was only a 5 minutes walk from the apartment.
We had to pay € 3,5 tourist tax per person per night on top of the Airbnb price but this is a decision from the city of Rome.
I would certainly recommend this place!