Located in a very central area, a short walk from all the best sights and restaurants, the flat was small but very cosy and clean. As many have pointed, you can hear upstairs neighbors walking and there were some renovations going on next door, but honestly it did not bother me as the neighbors were respectful and silent during night time. Anna was very helpful and quick to respond to my messages. There is no phone service in the flat, a problem that was persistent pretty much in every house I visited in Florence, but the wifi was fast so I had no trouble staying in touch. All in all, I had a great stay and would recommend it to anyone.
PS. I had some issues with the plug adapter as all of the electric sockets in the flat are only meant for the smaller plugs and I couldn't recharge my computer without it. The plug adapter was not working properly, it kept disconnecting and making noises. It did not look safe so it definitely needs replacing.