Super nice, modern apartment in a central location - 5 min walk from both the station and the main cathedral. Right next to a vibrant market with various stalls and a fantastic Tuscan food court. Nice Italian breakfast is available just across the street. The owner is very helpful and shares a lot of useful information prior to and upon arrival.
The market stalls/restaurants can get a bit noisy...if you are a light sleeper bring earplugs. Beds a very comfy though.