This is a wonderful 2-bedroom apartment about 1 block from the Piazza del Duomo...indeed, Bruneleschi's dome can be seen right down the street, from the bedroom window. It is very secure, with three locked doors between you and the street; it is very clean and modern, and is equipped for cooking and washing clothes. The pictures are accurate; it has 12-foot crown-molded ceilings, new tile and parquet floors, and all modern fixtures and plumbing. It is in an old residential building that has been completely modernized. The building also houses consulates for Mexico and Denmark and a lawyers offices. It is very quiet, but if you open the large modern windows you hear street music and passersby visiting local cafes and trattorias. There is a small neighborhood grocery store right across the street where all foodstuffs and wine can be purchased. It is located right in the middle of the old town...ALL attractions are in short walking distance, and one of the main bus stops (Piazza San Marco) is three blocks away.
The ONLY downsides:
We found the free WiFi to be spotty, some pages loading quickly, others never loading. It could be that most of our sites were looking for US or English pages through an Italian system, or that our devices (all iOS) were not set up well for Italy. I don't know enough to say. But if you rely heavily on WiFi data, and aren't a network wonk, you might be disappointed. We were not.
The bathroom was clean and modern but the stall shower had a door which was quite narrow and elevated about 8-10 inches above the tile floor. Elderly or especially obese visitors might find it problematic.
We would certainly recommend this apartment very highly, and would rent there again should we return to Florence (which, BTW, is wonderful!)