This apartment is nicely furnished, clean, and in a very convenient location, a few minutes walk from Piazza Navona. We walked from there to almost everything we wanted to see.
We rented the apartment for seven nights, as a couple with an adult son. We realized as soon as we checked in that the apartment is really not suited for more than two people. There is a comfortable bedroom with an air-conditioning unit. The "bed" for our son was a pull-out couch in the common area, which we weren't even able to make up into a level or workable bed -- he ended up just sleeping on the couch. As such, there was no privacy. We couldn't close the bedroom doors at night because the air conditioner is in the bedroom, and the ceiling fan in the common area didn't work. We also had to walk past his "bed" to get to the washroom.
Although the apartment was advertised as having laundry onsite (there was a machine in the kitchen which was unplugged), when we asked the hosts about laundry facilities, they just said "There's a laundry down the street." This was a disappointment to us, as we had already been traveling for a week and were looking forward to cleaning our clothes. The laundry service turned out to be quite expensive, as well.
We had hoped to cook some of our meals at the apartment, and while there is a stove/cook-top, there is really no counter space to prepare anything. There is also nowhere in the apartment to sit and eat, except to eat off your lap on the couch. There is a tiny table in the bedroom, but not big enough to eat at.
We were a little concerned about the fact that the only window in the apartment, in the bedroom, has a locked, vine-covered grate over it. Therefore, in case of a fire in the building, there would be no way out if you could not use the door.
We were given only one set of towels each for the week. We were given only one set of keys to the apartment. This meant that we always had to be together when we went out, leaving no opportunity for independent sightseeing.
All in all, I would recommend this property for a couple doing a short stay and not planning to cook. I would not recommend it for three people.