I didn't get a chance to meet Gianni as he was out of town however, he sent his son-in-law, Rony, in his place who was an excellent host for us. Right from the beginning he met us outside of the apartment to welcome us and ensure we paid the appropriate fair for our cab (there is a fixed rate in Rome to and from the airport).
From there he helped us to the apartment carrying bags and showing us around. Rony recommended many great restaurants and even made reservations at one for us as we do not know how to speak Italian. Afterwards, Rony made himself available for any questions.
The apartment is very nice and cozy! Our beds were comfortable and the shower was warm and pleasant. The neighborhood is also nice, you can really get a feel for how the Romans live in this part of town. We typically went to the same local cafe every morning and had coffee and pastries for breakfast. We were even able to get our laundry done for 10 Euros which was so convenient. You're about 10-15 minutes from the city center on foot. The walk is enjoyable and the neighborhood is a nice retreat away from tourists. Cabs were easy to hail and relatively inexpensive. There is easy access to public transport as well.
At the end of our stay, Rony and his wife met us again and the apartment to reserve a cab and see us off. Due to the wonderful hospitality, the location and comfortable stay, I highly recommend Giani's home for your next visit to Rome. I would jump at the chance to stay again!