We booked this apartment as a family of 2 (with kids 11 and 6) for a short city break, because wanted to be able to walk out to restaurants and cafes, and be a short hop to the main sights. Trastevere didn't disappoint, although its noticeably less bohemian and more touristy than our last visit (10 years ago), it's still atmospheric and lively. We used the playground, bakery, cafe and delis. We found the trams where not running, and bus routes not helpful, so we used the "Freenow" app to call taxis, reasonable rates and pretty reliable.
The downsides to the apartment was not clean when we arrived at night, so we had to stay somewhere smaller. There was a bad smell in the children's bedroom, and during the visit the dishwasher broke, and the kitchen was invaded by ants. Azzurra was not reachable by phone, but solved probs on messaging fairly quickly. The apartment is very spacious, wifi was reliable and basic cooking equipment is present. Heating was good, Rome is cold in Winter!