We stayed at Guido's apartment for 5 nights in early May 2017. It is a good location in the old town right beside Ponte Vecchio bridge and is near to Uffizi museum; however do note that the walk from SMN train station is about 15-20 minutes. The apartment is a nice size for 2 people, with a supermarket and laundramat (self-pay) nearby. Guido is also very helpful and responsiveness, we always appreciated his quick replies to our messages. The downside is the noise from traffic and chatterings at night, light sleepers like me may have trouble sleeping initially :( In addition, it will be best to bring along bedroom slippers as the floor/carpet are abit dusty (Europeans may have the habit to walk around in their shoes at home, but we don't do this in Asia). Overall a good experience and will recommend.