This brand of steakhouse has 1234 branches near Florence train station. I don't know which one is authentic or the oldest. Anyway, just find the nearest one.
You have to queue for this one. I waited for about 30 minutes without reservation. There is a double set meal for 70 euros. The medium-rare T-bone steak is better than Zaza's. The dessert that comes with the set meal is also very delicious.
There is a double set meal with red wine, salad/potatoes, steak and dessert. It is very cost-effective.
Good review~~