Pros: Location is perfect in the beautiful Borgo Pio street. The building is nice and well maintained.
Cons: the flat is managed by a company and not an individual. That means absolutely nothing is left in the flat (we had to buy basic amenities like cleaning products, salt&pepper etc).
Cleaning wasn't done at our arrival. Bed is awful (ultra thin and uncomfortable). Bedsheets had cigarettes burns (but were clean). Multiple interlocutors when you need to fix something (but special thanks to Chantal for her actions and efficiency !).There was a strong sewer odor coming from the bathroom.
Internet speed is average (6 mbps).
Bottom line: good enough for a city trip to visit Rome but definitely not for a long stay.