Doug G.
Yelp
Quite simply, this will be a "Top 10" dining experience for you. Maybe Top 10 forever or "Top 10" of the year (if you dine out a lot). Upon getting ready to leave, the proprietor and our server asked how everything was. My reply was "Perfect" - and it was. They humbly said "perfect is reserved for God". Very fair. So that is where I said "Top 10." It will be in your Top 10 also.
Everything was prepared there - everything. I tried some things I would never try in the US, and they were all delicious. We were with 2 older children, who often have different taste buds than adults, and they loved it.
If you dine there, ask for their recommendations and do not be afraid to try something new.
If I am anywhere near Firenze (Florence for my US folks), Da Delfina will absolutely be a stop for a "almost perfect" meal. If you're vising Florence, drive out to the countryside, enjoy the beauty, and have an exceptional meal at Da Delfina. I can make a very safe wager that it will be in your Top 10 also.