The people at Istay were great and took care of our every need (showing us around the apartment, storing our bags before our departing train, etc.). The apartment itself was fine though nothing special. Small kitchen, dining room that doubles as a living room. Air conditioning in only two of three bedrooms. (That mattered because it hit 105 while we were in Florence.) But otherwise comfortable and close to the heart of the city. By far the best feature was a fabulous view of the Duomo from the master bedroom balcony. As an aside, we originally booked a flat south of the Arno, but the city had a water problem and Istay had to offer us a different place.