Great stay at Piero's apartment. Even though it wasn't the closest to the center of Rome, the way to get there was easy (you can get to Termini station in 15 mins with a little tram). The apartment in itself was exactly like in the pictures, the decoration was very cute and the kitchen very functional (it has everything you need to cook). The apartment was also very clean when we arrived.
Piero was away when we got there so a friend of his greeted us with the keys. Communication with Piero and his friends was very easy and pleasant, they kept in touch during our stay and answered any question we had which was great.
All in all a very good experience in Rome, I definitely recommend Piero's apartment !