Stefano's place is amazing! It has 8 bedrooms and each bedroom has its own bathroom which worked out great for my group of 8. The common area has a kitchen with a working stove, a refrigerator, and 3 tables with chairs. I loved that this apt was not right in the middle of a touristy area but there were still plenty of local pizzerias, bakeries, and coffee shops nearby where the locals actually hang out. The metro station is right next to the apt building and it's really easy to figure out how to get to places like the Vatican or the Colosseum. The Vatican is walking distance (~20 mins) or 1 stop on the metro. The Colosseum is 7 stops away on the metro (~15 mins) and it's way cheaper and more convenient than grabbing a taxi or Uber. The first night in Rome my group walked towards the Trevi fountain from the apt which was very doable.
The apt was spotlessly clean and Stefano and his partner (sorry forgot his name!) were very helpful in checking us in, giving us tips on where to go out to eat at night, and arranging transportation to and from the airport... even when I contacted Stefano last minute in the middle of night (again thank you!).
I would definitely stay here again when I come back to Rome!