The apartment is nice and spacious and leaves fine room for 6 people to stay. It has two nice bedrooms and a large sofa in the living room for 2 people to sleep on. The living room can be closed off from the rest of the apartment at night. A nice feature is also the two bathrooms, each with toilet and shower.
The location of the apartment is really great. It is on a quiet street in a buzzing area, filled with restaurants, little shops and a grocery store very close by. And in walking distance of all the major sights of the city - actually better located than most if you are interested in visiting both the historic middle, the lovely Trastevere and the Vatican.
Communication with the host has also been good. We arrived late and left early, and both times the transfer to and from the airport as well as check-in and check-out worked smoothly.