The Sun apartment was fantastic!! It was our first time visiting Rome and the location was absolutely fabulous! We walked everywhere from there and found it extremely central. Peter was promptly waiting for us even though we were very late having missed a connecting flight. He gave us a quick tour of the apartment and some fantastic info for staying in the area. He recommended a restaurant called Dani El - http://www.daneltavernae.it
I would highly recommend it as well.
If I come back to Rome I will definitely contact Peter again.