Roberto is a great and friendly host. He was easy to communicate all the time we were in Rome, giving answers to all our questions as fast as possible. The flat is tiny but very cosy. Terrace is in free acces for all roomers. Its big and always clean, also it's situated pretty high.
The only minus is about high moisture, but we think it depends on season. The heater is complicated to deal with but you can ask Roberto to lower or rise the temperature.
Roberto greeted us with his friendliness and a bottle of great wine:)
Highly recommended!