We have just spent three nights here - and we had a fabulous time. The apartment is spacious (easily sleeps six people) and has all you need to cater for yourselves very easily - if you would want to, with so many cafes and restaurants nearby (try the little coffee bar opposite for breakfast, and zio gigli round the corner...best meal we had in Florence). The air con was very efficient during the mini heatwave.
Best of all was the terrace with its glorious views of the dome. Combine this with the location...a short walk to anywhere in the historic centre...and this apartment is utterly perfect.