I loved this apartment and stayed for 10 days. It is perfect for one person, or a couple. It's adorable and definitely vintage! The size is very accommodating, the kitchen fully equipped and the bed is comfortable. Plenty of linens for chillier nights.
The bathrooms are utterly charming: one with a sink & toilet; the second with shower and sink. Perfect for two!
The location is convenient to the city center, perhaps a 5 minute walk to the Ponte Vecchio, and you are right in the center within minutes. The immediate neighborhood is quiet and convenient, with several restaurants nearby. It is perhaps a 25 min. walk to the train station, in nearly a direct line.
Walter is delightful, and met me with a local bottle of wine - so thoughtful! He also had some great suggestions for nearby restaurants and services. I would absolutely recommend Walter's apartment for your stay in Florence!