I highly recommend this place:

Top location in the very heart of Florence - located right behind Piazza della Signoria, Palazzo Vechio and the Uffizi Gallery. Generally, every major Florence attraction is on walkable distance - it takes two minutes to get on Ponte Vechio, ten to reach the Cathedral complex (Firenze Duomo), S.M. Croche or the Medici Chapel.

The space is very cozy, with king size and very comfy bed, neat kitchen and bathroom. The hostess Christina was extremely helpful, the check and checkout experience couldn't have been better! This is definitely our N1 choice for Florence next time.