The good:
LOCATION LOCATION. You are steps away from the Trevi Fountain and numerous places to eat.
The bad:
The communication from our host was not good. Past the date we booked (over a month before our trip), she did not respond to any messages. After messaging three times when we arrived, had to call to get check in instructions (which makes you a bit uneasy when you are abroad). In addition to the communication being poor, the bed was extremely uncomfortable. The mattress sagged and you could feel the boxsprings in your back. The mattress probably needed to be replaced 4 years ago. Also, the shower is tiny so not good if you are a larger/tall person. My husband is 6'1 and didn't really fit. The shower was also not clean - had mildew/mold on the walls. The floors didn't look swept and there was hair in the bathroom and on the floors the day we checked in.
If you are trying to be budget-friendly and only concerned about location, this place is you. But if you are looking for comfort, don't stay here.