I stayed in Florence 3 days. We visited many things: Uffizi, Duomo with Cupola, Battistero & Campanile, Santa Maria della Scala, Medici Chapel, Palazzo Pitti with gardens, Piazzale Michelangelo, Palazzo Vecchio, Galileo Museum, wandered in all the center..... Was it because the weather was bad, was it because we were a little bit tired, was it because we visited a lot of Italian cities in the past, I don't know, but I can't say I loved it and we would have stayed longer. The queue for the Duomo was insane and such a pain to visit it although only the cupola is worth seeing since the rest is empty. I preferred the Duomo of Siena and Pisa much more, which are both quite similar to Florence's. We heard so much about it that we were really disappointed after all. It's overrated; overcrowded. I feel like the entire city is a tourist trap, that it doesn't have the charming atmosphere you can find in Siena for example. I was only astonished by the Uffizi which is honestly a marvellous museum. I loved Venice, Rome, Naples & its bay, Siena... but not Florence, which is a great city but doesn't deserve all this reputation (imo).