We loved this flat, and if we ever return to Rome, would love to stay here again.
The flat is in a perfect location! Close to restaurants, shops, and activities. 5 min walk to the Piazza Campo de Fiouri; 20 min walk to Collisieum and Vatican; 15 min walk to Pantheon and Trevi Fountain.
It's a 45 minute taxi from the airport. Located near several ATMs and public transport.
Wifi was strong. Water pressure was strong. Hot water lasted through 3 showers each night. Neighborhood is quiet, but steps away from the hustle and bustle. No issues with noise from the outside. Self-check in. There's a washer/dryer combo in the unit. (If clothes don't dry in 1 cycle, do NOT rerun the cycle. It will rewash them, reset it!) Hosts were very communicative. Great character. Modern amenities.
Things to consider (NOT cons):
There are steep, narrow steps up to the apartment, and in the apartment.
Speaking of upstairs, Europeans start with floor 0. Then 1, then 2, etc. :) Don't try to open the wrong door on floor 1!
The beds are a bit firm.
The space is small. It's really ideal for 2-3 adults, or a family with 2 children. Some of the ceilings are low, as well. I'm 5'7 and had to duck! We traveled with our 6 year old, and it was perfect for the 3 of us.