The apartment is great and very close to the duomo. It was a clean and very nice apartment.
However, there were no instructions regarding things like WiFi passwords, heater, check-in, etc. If there was a sheet explaining said things, the stay would have been a bit easier. Everything in the apt. worked really well though.
Other than this, one bed was fairly uncomfortable. There is an elevator to the apartment, but there is a flight of stairs you'll need to climb in order to get to the place itself. And the area was super quiet.