My husband and I stayed at Niccolo’s place for a total of 3 nights. Overall; great location, clean space. Some comments below:
Location: wonderful location-in the middle of the city; 5-10 minutes from the Last Supper. Additionally, the train station from the airport is about a 5 minute walk from there.
It is a busy street, so expect some city noise of course. The area did seem very safe to walk around too.
Check-In: we were greeted by one of his associates it seemed, who did not do a good job at explaining how to use each key for each lock on our door, but we particularly would have liked an explanation that you need a specific key to get in/out of the building every day.
The place itself is as advertised in pictures.