The roof deck and pentroom are exceptional. 360 degree views of central Rome.
The hosts are excellent. Helpful. Communicative. Friendly.
The location is great for both eating & central Rome sightseeing.
The apartment & immediate area is very quiet, but you can reach busy drinking /dining areas easily.
Contrary to the description, there is no washer/dryer.
The hosts can have your laundry picked up and done, but it takes a day.
Only an issue if fast/self laundry is important to you.