After trying all of the great gelaterias of Florence, Gelateria dei Neri was the one I kept going to every night. They have the best combination of flavors, quality, quantity, and price of all of them. Other gelaterias in Florence, like Vivoli or Grom, have equally excellent taste, but cost more for less gelato. At Gelateria dei Neri, you can spend 2 euro and walk away with a fairly large and deliciously satisfying cone of gelato.
Besides that, the workers are friendly and kind, and will help you understand the flavors if you don't know Italian. Also, you can put two or three flavors on one cone if you want. During my many visits, I tried nearly all of the flavors, and was never disappointed. Grab a cone, walk to the nearby Piazza della Signorina, relax, and enjoy the best gelato in Florence.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.