Dellarocco's opened last summer just a few hundred feet away from us, but we never went. There are several places in the area to sit down and have a pizza dinner, but there are quite a few places with pizza-by-the-slice - food just as good at a fraction of the price and requiring a lot less effort.
Dellarocco's serves Neopolitan pizzas, and they do quite an authentic job, which means for the most part the crust is doughy, almost soggy. If you like your pizzas doughy (Elizabeth does), I think you will love this. If you prefer a firmer, crisper crust, you will still like the pizza, as I did, but it probably won't become your new favorite pizza joint.
The flavors of the Margherita - tomato, mozzarella, basil and olive oil - were all quite good. I thought it would have been better with some garlic, too, but then again I say that about everything.
Back in Pasadena, it's possible Dellarocco's would have become a regular destination for us. But in a neighborhood with lots of pizza places, I don't know how frequently I will return... if at all. Just the night before we had dinner at My Little Pizzeria (we love pizza) and four slices, a half-dozen garlic knots and two drinks amounted to $14 - less than the price of one of these pizzas. Now, that's not exactly a fair comparison, as MLP and Dellarocco's are two completely different types of restaurants. But MLP serves the kind of slice I prefer and that's where I will continue to go when I want pizza.