Simone's apartment was fantastic! Leading up to our stay, he was very responsive. Day-of, he waited for us at the apartment and helped us bring all of our luggage up to the apartment (traveling with a baby and all the luggage that comes with, this was no small feat!). He gave us restaurant suggestions and even had a bowl of fruit waiting for us.
The apartment was clean and safe. The bathroom was recently redone, which is a nice touch since most apartments in the heart of Florence are very outdated. When booking, I was worried that the location (other side of the river from Duomo, and many other major tourist sites) was going to be a hassle. I was so wrong! It was very quick and easy to get everywhere, and it was actually MUCH better to be away from all the tourists, hotels, etc. There are also some nice cafes/restaurants right at the foot of the apartment which was nice (noise was not really an issue).
Overall, I highly recommend this apartment.