This is a great and incredibly well priced stay.
The rooms are large, modernly furnished, clean and nice looking.
The location is superb. Located in a very central part of Florence in some of the more upscale parts of town - literally meters away from high fashion and designer shops with bars and restaurants abound.
Some of the cities main attractions are literally around the corner with no more than a few hundred meters away from Palazzo Vecchio and the Duomo.
We only stayed one night as we were only passing through - but organising keys and access etc was an absolute breeze.
As the ad states - the apartment is on the 4th floor without any elevator access so would not be a great for those with limited mobility. Provides a nice little workout for carrying your luggage though...!;-)
All in all a fantastic option with access to a part of the city you'd normally have to stay in a fancy hotel to enjoy.
The lovely, very sweet and helpful Laura that helped us with our stay was also a pleasure to deal with.