I'll preface my remarks by saying this; we're Italian, live in an Italian neighborhood in NYC, and have had many meals in Italy.
Tutto Italia is an "Italian" restaurant and does NOT specialize in Italian-American food. No veal parm on the menu, if you know what I mean, although they do have a few dishes that obviously cater to an Olive Garden crowd. Steer clear of these. Mostly, Tutto is in the classic European syle - they use fresh ingredients (including maybe the best mozzarella I've had outside of Europe) and prepare simple, elegant dishes.
We had an excellent meal there last summer. Here is the key to eating in any restaurant, as far as I'm concerned. Be adventurous and talk to your server! They will steer you toward the best dishes. When asked how you'd like things cooked, try responding, "Chef's choice." Have a meal the way the chef would like you to have it.
I still remember our server that night, Alice, who was thrilled that my wife spoke Italian, and she basically chose our whole meal for us, which as I mentioned was wonderful!
As for those who question portions, you are meant to enjoy an appetizer, entree, and dessert. Cheap? No, but a filling, great meal. Here in Manhattan, a 3 course "fine-dining" Italian meal runs between $50-80 a person (sans drinks) so Tutto's prices are in line. Is Tutto as good as Batali's Babbo? Obviously not, but it is an above average, authentic, Italian restaurant.
Hope this helps a bit. Enjoy!