Simone's apartment is in a charming neighbourhood free of tourists, filled with cafes and restaurants that offer local food and prices, and locals who are always willing to help no matter how bad (or non existent) your Italian is.
The apartment itself is beautiful and light-filled, with high ceilings and lovely shared spaces, which are comfortable, clean, and you're made to feel welcome in. The room is big and bright, and the bed is comfortable, which seems to be a rare find.
The center is a 5 minute bus ride away, or a 15 minute walk alongside the Arno, which is stunning at any time of day.
Simone and his roommate Mauro are lovely, local to Florence, and are both extremely generous with their time and knowledge. I'd stay there again in a heartbeat.