Vincenzo's place was very neatly kept and filled with nice amenities (maps, pastries, tea/espresso maker, etc.). The rooms and beds comfortably fit five people, if a bit cozily. The showers, however, are very tight spaces - you'd have to be petite/a contortionist to bend over.
Vincenzo himself is great and personable! He met us promptly, helped us with our luggage, and showed us all the pertinent parts of the apartment.
An extra tip: close both doors on the elevator when you exit it, or else nobody can use it.