Sumiyo was an excellent host: communication was quick and clear; she was flexible around arrival and departure times; had great suggestions for things to see and do (even for us, who aren't Florence first-timers); the apartment was exactly as pictured; everything worked; and, she was helpful and available without being intrusive.
The location is a 6 minute walk from grocery/wine stores and Ponte Vecchio, yet off the main streets so as to be quieter. The Oltrarno affords a less touristy location, while being able to access all the ' touristy' sights within a 20-25 minute easy walk. We would gladly stay again.