Matteo was very available to answer my questions and we can ask him to check in and out according to our arrival and departure. The apartment is exactly as the pictures and clean and is so well located, it's only few meters to Piazza Navona and we walked to all the main attractions in Roma. The apartment was well equipped as well (towels, shampoo, soap etc. and kitchen fully equipped). Matteo was kind enough to leave us a bottle of prosecco and water and a breakfast.
The only inconvenience was the wifi which was not working even by resetting it. But in overall, I highly recommend this apartment.