My and my friends only stayed one night at Vincenzo's apartment, because we were catching a connecting flight.
But overall, and because we had already visited Rome 15 days earlier, I can tell you that Vincenzo's place is very comfortable and well-located.
As a host, he has been very communicative from the beginning and the check-in process went smooth. He was very understanding, because our flight was delayed an hour and a half, so he waited longer for us.
We really enjoyed our short visit at Vincenzo's apartment, and most important, we were able to rest. Next time we visit Rome, we'll definitely try to book this apartment! 100% recommended.