Location Location Location! This place was perfectly situated in the middle of everything.
Marco was an accommodating host. The instructions were fine and he greeted me upon arrival, took a copy of my passport and showed me the apartment.
Yes there are a lot of stairs but if you are reasonably fit it shouldn't be a problem. One of our party was 72 years old and our neighbors climbed them with an infant in tow. You can plan your day so you only have to climb them once or twice. Great exercise after gelato!
Apartment felt very secure and was very clean. The common area was a kitchenette between two bedrooms. No couch or living room type of space. This was fine for us because we didn't spend much time in the apartment but if you like to lounge around and watch tv - you may be disappointed.
The bathroom was off one of the bedrooms. Shower stall was typically small but suited our needs. There were nice big towels for the three of us. Sometimes in Europe you get little tiny dish towels it seems.
We had some initial trouble with the wifi but Marco provided additional information which fixed it. Also note that you will have to pay a €2.50 per person per night (City of Florence) tourist tax to Marco before you leave... it is not included in the cost of the Airbnb.
Outside the apartment is a convenient grocery store where we bought fruit and drinks. We also enjoyed the cafe Verazzano for morning cappuccino and afternoon pizza.
Again I cannot stress the fantastic location of this apartment This was a great stay and I would highly recommend it.