Always loved Piazza san Niccolò, so it was a pleasure to stay there. The apartments are quiet and relatively spacious, with a nice common area. The host was very easy to deal with and prompt, check in and out were simple and on my schedule. My only complaints are the usual caveats with European bathrooms: The showers seem practically designed to soak the floor with water, had to keep three towels in rotation to keep the floor dry with daily showers.