The Flour Suite was awesome. It is more spacious than the pictures suggest and it has been decorated in a fantastic fashion. Everything we needed was provided plus a few nice extras. Plenty of towels, bedding, kitchen items, shampoo/soap, and tvs! Netflix was a nice touch, although we only used it while getting ready and winding down at night.
We had originally tried to rent a place with a view of the Colosseum. I am so glad that fell through. The location of this apartment vs where we would have been was perfect. Equidistant to the north with People's Square, Spanish Steps and Trevi. To the east, the train station for tours and car rental pick up. To the west, Vatican City. And, to the south, the Colosseum and Roman Forum. We walked everywhere (except Pompeii and Amalfi Coast!!) and had no issues.
The building is very safe. The boys heard noise one night, but we had the windows open and I never heard anything. The pizza place directly out the front door was fantastic. (Although, get reservations -- they are very busy.)
Alessio was very responsive and their apartment book answered every conceivable question. He seemed very interested in ensuring we had a great visit.
If we are able to come back to Rome, we would definitely stay with Alessio again. Far exceeded our expectations.