The best thing about this flat is its location, right in the centre of Florence and its wonderful history. Cross the Ponte Vecchio bridge (a 3 minute walk) and to your left is a good supermarket, next to an artisan ice cream shop and a local deli for sandwiches.
The bedrooms are attractive with good quality linen and comfy beds. More importantly the bedrooms are quiet: the result of recently installed double glazing so you'll get a good nights sleep.
People have commented about the second bathroom (a small wet room with a shower head) which if used for a shower would soak the floor and toilet, so I thought I'd add my own note. We kept this room for use as a toilet and washbasin only, and didn't use the shower. We had a rota for showers using the main bathroom (standard shower, toilet and washbasin) and this worked perfectly for seven adults, so don't worry too much about this quirky arrangement. If you've been to Italy before, you might have seen similar wet rooms elsewhere. I would definitely stay here again and I would definitely recommend the flat to other people.