Sandro & Ludovica stepped in to host us when our original host cancelled on the afternoon before we were due to arrive in Florence. They responded quickly, everything was ready and they were there to welcome us on arrival. The apartment has great character (wonderful old beamed ceilings) and a real feel of being a home rather than just a rental place. Having "character" doesn't mean a lack of modern facilities though - plenty of hot water and heating working fine! We had originally booked somewhere not far from the Duomo for convenience but in fact were pleased to be slightly away from the main tourist sights in an area with a more local feel. There is a good local supermarket and if you fancy a quiet meal away from the crowds we particularly enjoyed Culinaria Bistrot in Piazza Tasso (10' walk away). We were still within easy walking distance of all the main attractions - historic centre, Duomo, Uffizi etc.
Sandro & Ludovica were lovely hosts and we would not hesitate to stay with them again. We recommend them wholeheartedly.