We really enjoyed our stay at Andrea's place. You're a short walk away from the Colosseum and the metro station, and you also have a supermarket and pharmacy close by. There are also several restaurants on the same block (although some are a little touristy), and a luggage storage place right across the street, which was extremely convenient since Rome was our last stop in Europe and our flight was in the evening.
When we arrived in late June, the weather was already getting pretty warm, and the A/C felt great when we first walked into the unit. There was a bottle of wine waiting for us, which was nice.
There are a couple of places where you can hit your head when descending the steps if you're tall, but Andrea has them clearly marked and even padded so they won't hurt if you do.
If we return to Rome in the future, I would definitely book this location again if available.