We stayed as two families of four at Stefano's apartment in Prati. The space is great - there are 5 good sized double bedrooms each with an ensuite. Exactly as described in the listing.
The location is fantastic and near to shops, restaurants and a 5-10 minute walk to the Vatican. The Lepanto Metro is also about 5-10 minutes away.
Stefano was very responsive and quick to help us check in and deal with questions during our stay. There is a porter during the day in the building who was also great.
The suites are great as a place to stay whilst exploring Rome.