The penthouse apartment is not to be missed. It's almost 3 floors - but the indoor/outdoor space on the top really makes the place spectacular. The views are BEYOND amazing - the river, sunsets, people on the Ponte alla Carraia. The location is very central with shopping, restaurants, and cultural sites all nearby.
The apartment itself is equipped with its own private elevator - which was awesome. There are four true bedrooms and three baths. AC units in every room that even during our visit in the height of July, kept the place very comfortable. The kitchen is modest. But why would anyone choose to cook while visiting Florence? It's also very private. And there was little to no noise from the street or other residences. The decor is... interesting...a bit worn and dated. But honestly that is not why you stay here. It's the location, and the top floor!
There was a tiny hiccup getting information about checking in. But I assume this was just a fluke and it was honestly only a few moments delay. We were also allowed to check our bags early at another location - which was very helpful.
Overall I'd definitely recommend staying here.