We loved our stay at Matteo's home. It is well located ever so slightly away from the main hubbub of Florence, on the side of the river where there are more locals and less touristy eateries. We made the easy 20-minute walk to/from Florence's main train station both ways with loaded backpacks and it was no problem. Access to the apartment is easy and secure.
Matteo's kitchen is amazingly well stocked with culinary equipment for when you need a break from eating out. His apartment was also the cleanest AirBnB we've ever stayed in, which was really nice.
Matteo himself is awesome, and he provided all the info we needed for a nice stay without being the least bit intrusive. We will definitely stay here again next time we visit Florence!