In my reviews I invariably state that the two main things I care about is Location and a Host who helps me not mess up. Well, Garbadella is a wonderful home base and Alessandro is a true prince.
I usually try to be able to walk---to and from the train station, into the heart of the town. In Rome, of course, is HUGE so that is impossible. You must learn and use the simple metro to get around. Alessandro's place is a five minute walk to the Metro and a 8-10 minute ride to the Colosseum. Once on the Metro you can get just about anywhere. Garbadella itself is attractive and calm with plenty of restaurants, gelato, pizza, bars/cafes, a fine enoteca right next door, grocery stores and post office. Plus as Alessandro recommended: it is near the Old Appian road, a lovely walk to the lesser visited catacombs of Priscilla.
The 8th floor apartment is spacious and comfortable in every way with a balcony for sitting in the sun and and enjoying the twilight views. I travel solo but two people could stay here easily. And in my opinion, the quiet building is quite upscale.
Alessandro is a generous host. There was a welcoming bottle of wine and a tin of delicious biscuits that I brought to London for a party. Alessandro's recommendations were right-on as to places to eat and things to see (The Augustus Forum show, the walk to the catacombs) and when I needed my boarding pass printed (as well as Borghese and Vatican reservations) Alessandro tucker of it and dropped it off at 8 a.m.
I had a great 7 days!