Our family of six (4 kids ages 7 to 14) thoroughly enjoyed staying in this apartment for 4 nights. The location was perfect - we visited all of the major sites in Rome and never took a bus or train. The walks ranged from a few minutes (Piazza Navona) to maybe 30-40 minutes (Colosseum, Borghese Gallery). The small market right next door was convenient for stocking up on breakfast items and snacks. The immediate neighborhood was very nice, with several tasty restaurants right nearby and easy access to all of the restaurants near the Piazza Navona.
The apartment was very comfortable. The kids loved each having their own bed (a big deal for our family!), and all the beds were comfortable. We visited during the hottest week for Rome in the last several decades, and the AC kept the apartment cool and pleasant. There was a bit of street noise from the restaurants outside the master bedroom, but it was not disruptive to our sleeping.
Massimo was a very responsive and accommodating host, and the logistics all went very smoothly. He even arranged our transportation from the airport, which made arriving stress free and easy. We would definitely stay here again if we return to Rome.