Perhaps you found it underwhelming because it's not the American version of pizza, which in Italy, is eaten more like bread than the version we have here.
More often than not, when watching her show, I feel like I'm watching my mother cook. I've said it repeatedly, what people in this country think of as Italian food isn't the food Italians eat.

Lasagna, zita, all those heavy cheese dishes are special occasion food. Like Christmas or Easter special occasion.
Of the recipes I've tried, they have all been very tasty. You had the first clue in 4 small tomatoes that it wasn't the type of pizza you would expect
The first time my husband went to Italy he went into a restaurant with the same expectation of being wowed by the food like he was in Paris. His comment? "I eat this food all the time at your mother's house"
I haven't tried any of her restaurants because, well, why pay for something I learned how to make at my mother's elbow?