Very nice place in a central location, easy access from the train station.
Checking in was easy and communication with Sharika and Mario was swift and straightforward.
Given that the flat has old windows and is located at a busy street, I would recommend bringing earplugs because of the noise levels from outside (we were there on a busy weekend, perhaps there is a bit less activity on a typical off-season weeknight).
All in all, the flat felt like very good value for Firenze.