The location is just perfect. Everything you need is nearby. The bus system in Florence is excellent, and there's a bus stop across the street from the door.
The apartment is long and narrow, but well supplied. There's a washer in the bathroom but we didn't try using it. There's nowhere in the shower to put anything but on the floor, but I'm being picky.
The hosts are friendly and helpful. We were met on the street in front of the building as we walked from the train station... a nice touch.