This is a good place for a family or couple who want to see Rome. It has space, is clean and has everything you need (except a washing machine, though a laundry-shop is 1 min walk away)
The apartment is in a superb location, with the Metro right outside the door and major bus routes anywhere from 5-15mins walk. We never had any problem getting to where we wanted to go to or getting back at night.
On sleeping arrangements, for a family, with a couple of kids: there is one real bedroom with a double bed, then another double bed in the lounge and a third sofa bed over the kitchen. For us, with two children, this all worked out fine.
Many thanks to Valentina!