Hello. We will be in Florence for 2.5 days in May, between Rome and Venice (our first trip to Italy). We plan 1 day to take a bike ride into the Tuscan countryside, winery etc. and then of course we will need to see David, the Uffuzi etc. Debating whether to take a bus/train/car to Pisa for 1/2 of one of these days, to see the leaning tower. I have read a lot of opinions that say they wouldn't do it "again," but that's different from saying not to do it the first time, just to say you've been there. Please let me know your thoughts.