Location is just perfect. Not only it's 5-10 min from most attractions but there are several cafes and restaurants to enjoy espresso or meal 20m away. Best of all there is no noise from this places!
We came by car. Donna has reserved space in garage 100m away. Since our car is not mini, we only needed to pay 20% or something of parking price. We didn't need car at all while we were in Florence, so it was parked during our whole stay. For that reason I would also recommend this place to people arriving by plane or train - no need for taxi.
Check in was easy, did not even meet the host, she unlocked the place remotely - keys were waiting for us.
The apartment is spacious. It's in historic building and has that historic vibe - low ceilings with wooden beams, steps to reach bedrooms. There were three of us, but it can easily accommodate 5 people if sharing one bathroom is not a problem.
We did not have that issue, but the only drawback that I could find is that because of low ceiling persons with height above 180cm might bump a head going between rooms because of low ceilings.