The apartment was clean and cozy. The host was very hospitable with us. We had everything we needed - enough paper towels, laundry detergent, soap etc.
What I really appreciated was the security. The apartment is a part of a private apartment complex to which only people with keys have an access.
Location is nearly perfect - 10 mins on foot to Colosseum, 2 minutes to a bus stop, 10 minutes to a metro station.
The only disadvantage was noise during the nights. Unfortunately Rome gets pretty busy late at night so if you're visiting during the summer and will therefore sleep with open windows - take some earplugs, they seriously saved us.
I definitely recommend this place and will consider coming back.