We stayed for one night prior to our flights home. We chose the hotel because of it's relative proximity to Ciampino Airport.
We had spent a few days in the middle of Rome and it was nice to get out into the hills surrounding the city. The area around the hotel is mainly residential, but it's a pleasant area.
We walked up from Frascati Station which I wouldn't recommend, and the hotel do offer a shuttle service to and from the station.
The hotel was bigger than we were expecting and has lots of outside space.
We didn't eat at the on site restaurant but wandered down the road to a local restaurant which offered some very nice Italian food, as you'd expect. We did have a drink when we got back to the hotel and they are reasonably priced.
The only downsides to our stay were firstly the air conditioning wasn't great in our room, and I woke up at 2am feeling a bit clammy. Only by opening the windows and racking up the air con were we able to get the temperature down. Secondly, we ordered a taxi to the airport via the front desk as it was quite an early flight. The taxi was nearly $10 more expensive than if we'd ordered one from the middle of Rome despite the hotel being only 5 miles from the airport.
Overall, I'd fully recommend this hotel for anyone who is planning a trip to Rome but wants to get away from the hurly burly of the city at the end of the day.