The apartment was exactly what we wanted. It was quite basic with very large (Italian?) furniture. It is on the ground floor of a 4-5 story building so there is some noise from the neighbours during the day but this wasn't a problem. It is very central - everywhere is within reasonable walking distance although bear in mind it does get hot during the day outside. The apartment always remained cool though.
We always felt safe in Florence even when walking to the station at 5.30 am to spend a day in Rome.
Daniele was extremely helpful and knowledgeable.