Great neighbourhood: close to Campo di Fiori with markets during the day and restaurants by night. Just across the river from Trastevere...very buzzy area full of bars and restaurants. The big must-sees are all walkable: Vatican, Coliseum, Piazza Navona within 15-20min walks.
The apartment itself is lovely, stylishly decorated and the hosts are helpful.
The kitchen was well-kitted out with welcome essentials in the fridge: milk, eggs, bread, cheese. Dishwasher tablets and laundry detergent made life easy. The wifi worked well.
Slight downsides: the bathrooms are a bit tired and the head height upstairs is very low...we whacked our heads a few times each.
The apartment is on the third floor with no lift: ok for us but our older in-laws struggled. The kettle was broken so the tea-loving in-laws had to boil water in a saucepan for four days.
Otherwise, we very much enjoyed our stay.