We had a great time in Firenze, for New Year's Eve holidays, in Luca's Via Maggio apartment. This charming apartment is calm, perfectly equipped and clean, and idealy located (5 min walking from Ponte vecchio, 2 min from Palazzo Pitti, 10 min from Duomo...).
Luca has been a perfect host, managing a solution for our unscheduled early arrival; all advice we got were much appraciated and helped us optimizing our time (Firenze Card is a top plan for a 3 days stay!!).
That is why I and my travel mates strongly recommand Via Maggio apartment!