There was some initial confusion about the airport shuttle service and cost, but other than that, our stay was great. The place is clean, sleek, tidy, and a great location for getting around to the major monuments in Rome! In particular, the bed was extremely comfortable and the shower was modern and spacious.
Regarding the shuttle service, for future guests, I strongly recommend using the metro to get to the apartment. The shuttle service from the airport was 55 euro, and is not included in the cost of the stay.