Roberto's place is great. Super clean, comfortable, with all the amenities you might need. It is located right near the Vatican walls, so it's a quick walk if you're visiting. It's also located close enough walking distance to other main attractions, while still being away from the really touristy areas. Added bonus, it's a quick walk to the area of Trastavere, which Roberto recommended, and was a really great area where we spent a perfect last night in Rome.