My family (of 5) stayed at the "dreamy brunelleschi" for a few days while passing through Florence. During our two week trip, I can easily say that this apartment was the nicest!! The check-in/out process was SO easy which removed a lot of stress from us as we were traveling all day. The renters were also very accommodating providing maps and suggestions to us of what we should see/do.
As for the apartment itself, the location is central to everything including the train (about 7-minute drive) and all of the monuments. The interior was also beautiful and just as you see in the pictures. The only small downside is there's no lift in the building. The apartment, however, on the first floor so there's only about 10-15 steps...just something to note and not be surprised of when traveling with large bags.