Close to a supermarket, which was our source of food almost every night. Pizzeria and bar right outside the gate. Right in front of a bus stop as well. Vatican city was 1.2km away and we walked home easily. Great location if you want to go to the Vatican.
Check in was good and so was communication. Enrico helped us book a valet to the airport on our last day. That was very convenient for us.
The place is much bigger than the photos show and can easily accommodate 6 people. It was well-equipped with a washer, oven, microwave, stove, etc. It would be very good for families and for days where you don't want to stay out too late and just cook things or have a microwave dinner. It's also a quiet place so you'll sleep well at night.
Our only concern was that we had to take buses to go to the city center, which isn't bad at all. However, since the buses were late (not Enrico's fault) we were often late for our appointments as well. If you have a more leisurely pace, Enrico's place is great.