The location is prime. Very close walking distance to Vatican and markets. The street downstairs has a lot of places to eat and have desert, which is convenient, however, if you like a quiet place to sleep, you need to bring ear plugs, because the restaurant is open till 2 am some days, and glass recycle collection is early in the morning, so you hear it very loudly.
The host is friendly and very very helpful with local tips. We also enjoyed having a washing machine in the apartment.