My family and me have spent six wonderful days at Dario & Bea apartment. We are four (two adults and two kids), and we felt like home.
Dario is a great host, has everything very well organized at the apartment and he is always aware of the messages and responds very quickly. In the check-in, he welcomed us, explained everything about the apartment and he gave us a map, a directions list with a lot of advice for shopping, visiting the city and move in public transportation.
The apartment had all what we needed: two comfortable double beds (one of them is a sofa bed), a well equiped kitchen and a complete bath (everything was like in Airbnb's photographs). It had TV and a very good wifi connection.
For visiting Rome and its historic monuments and sites the apartment is very good located, in 10 minutes walking of Colosseum (even with kids) and there is a metro station very close.
Lovely holidays!