Claudio is a very friendly host and offers a great appartement with everything you need.
We have been here as a family with 2 children and enjoyed the stay very much. I can definitively recommend to stay here.
The appartement is spacious, nicely decorated, equipped with all the basics for a stay (bed linen, large(!) towels, soap or toilet paper. Even oil, salt, coffee or tea was available. WiFi is available. A small balcony is nice for enjoying the evening outside.
Buses are almost in front of the house to take you to the city center (716: Teatro Marcello) or to the Metro (669, 792) or around the corner (160: Terme di Caracalla, Piazza Venezia, Fontana di Trevi, Villa Borghese; 30: Piazza Venezia, Piazza Navona, Castel S. Angelo). The Metro B (Garbatella) or train station is ~10 minutes to walk.
Via Appia Antica is also just 10 minutes to walk where you can rent bicycles.
There are a few supermarkets within short walking distance and a great bakery (try the olive bread!) and gelateria (they have excellent(!!!) croissants of different types) are just downstairs. Plenty of bars, restaurants and other shops are on the same street.