The apartment is nice, clean and very central, situated 400 meters from the Colosseum. Paolo seemed very friendly.
Everything worked just fine, however the apartment is smaller than what the pictures make you believe, at least for the kitchen area. Also important to know that the apartment is situated in a gay street, so do not be surprised if the waiter start to massaging you while you are waiting for a pizza there... however the atmosphere in the street is very chilled and there are a lot of small restaurant and petite markets. I recommend the apartment!