Martino seems like a very chill and welcoming guy. The location of the house is great, it's in a great neighbourhood that's cleaner and quieter than the main city area, but still is really close to the Termini station. Connectivity is great and there are a couple of cute places serving good food right across the street.
The room was as described, large, clean and with the added advantage of having an AC for hot days. Martino was very helpful with check in and check out, and even let us come earlier than our check in time to drop our luggage till the room was ready. The room also had its own key, so safety of our belongings was never an issue.
I would certainly recommend Martino's place for those travelling to Rome, and would love to go back if I'm there again :)