Unique apartment but uncomfortably hot.
Florence is a beautiful city, so we didn't spend much time at the apartment. We needed it for a good night's sleep and wi-fi for our kids to have some downtime. It didn't do well on either account.
Sleeping was horribly uncomfortable. There's wasn't a breeze in the apartment, even with the windows open, and the AC unit/fan didn't cool off the apartment. Sadly, the additional fan that was promised for the kids didn't make it to us. This resulted in both kids (and parents) with a restless and uncomfortable sleep. Additionally, the wi-fi went out the first night we were there, which was inconvenient.
The location and the history of the place are amazing, and the apartment is nice enough, but wouldn't recommend this location during the hot summer months (or if you're in need of reliable wi-fi).