It is a nice apartment, near the Santa Croce Church. Shops and restaurants are nearby. Nadja and Bred had prepared the apartment very well and also reacted to questions when I had them.
I could check in earlier than officially scheduled and I also could check out later.
When I decided to stay longer in Florence they were so kind to offer me another place to stay.
One remark: the bedroom is on the mezzanine-floor. The space is about 1,20 m high and the stairs leading to it are a bit steep.