We recently stayed in this apartment and loved it. It is so close to everything, minutes walk to the Duomo and incredible restaurants in every direction. This apartment was also really affordable and from speaking to a few other people who were staying in Florence at the time, one of the better apartments in terms of cleanliness and good location etc for the price. The owner is very accommodating, helpful and lovely and even offered us a bottle of red wine on arrival. The apartment is about a 15 minute walk from the Santa Maria Novella train station and if you have GPS on your phone, will be very easy to navigate to (we didn't so we got a bit lost). The smaller room is very small however, it really is just a single bed and wardrobe and can be quite noisy at night (owner offers you ear plugs for your stay). If the apartment really is just a base for travelling around and seeing the sights as we used it for, this apartment will be perfect for you, we loved it and highly reccomend it.
We thoroughly enjoyed our stay in this apartment. We were made to feel very welcome with a well-stocked kitchen and bathroom and complimentary bottle of wine, and plenty of information about what to see and do around Florence. The apartment is up one flight of stairs, but even though we are a pair of retired ladies we managed these okay.
The apartment is in the heart of the city, with a wealth of trattorias and restaurants only steps away from your door. The only downside of this is that it could be noisy at night, if you didn't use the thoughtfully provided wax ear plugs that the landlord leaves on the bedside table. Truthfully, there is probably no place in the heart of Florence that will not have night noise from bars and restaurants, and these little wax babies really work a treat! There is double glazing on the windows, but a large part of the noise comes from street cleaning vehicles! The area is very safe - or at least we felt that way, and we would certainly highly recommend this apartment to anyone who can manage a flight of stairs.