Beautiful flat. It is relatively easy to book a place where one finds basic things for a comfortable stay - obstacles appear when you are looking for a place that has something extra. This flat has it.
So - is it clean? Does it have comfy beds? Are bathrooms cozy? Sure. Plus a rose garden. Plus an "at home" feeling. Plus really smart design.
Location is what I call "mature Florence" - outstanding, standing out from the crowd, quite literally. You can enjoy another point of view in Oltrarno.
Distances are walkable. And Santa Maria del Carmine - with Cappella Brancacci (where you have an opportunity to stare at famous Masaccio's, Masolino's and Lippi's frescoes) - is only 200 m away.