This is indeed a lovely hidden gem. The apartment has everything you need, the location is perfect and the hosts are friendly and available whenever you need them. The apartment is super clean and was recently new renovated (so all is new).
San Niccolo is a lovely area. There is bakery next door, as well as a coffee place, restaurants and also important an ice cream place. You can easily do everything by foot from the apartment.
I would definitely recommend this apartment and love to come back.