The location is fantastic, a 10-minute walk to the train station, 15 min to the historic center, Santa Maria Novella church. The apartment is spacious, clean, marble floors, tall ceilings; nice and well equipped with two bathrooms, air condition, and excellent WiFi connection; all really great. You just need to ask for things like: remote controller for the AC, iron and ironing board (we needed it), or to keep the kitchen open (initially it was locked, but they will leave it if you ask for it - you will find it useful). You need to call them to let them know what time you are coming, just from the train or the airport, and somebody will be there to give you keys and check you in. Oh, ask which floor and room you are in - in our case it was 4th (last) floor, which was not marked on the inter-phone (the name Campanella was, but not which floor). The only negative thing, hopefully temporary, was the tram making loud screeching noise on a sharp turn - they are building a new train line but it should be ready and fixed by ~September.
