I've been to Smash Kitchen three times now. The second time I had the lobster mac and cheese which is delicious and has a decent amount of lobster, but also one of the most expensive things on the menu (that isn't something like steak) at $22 dollars, $27 after tax and tip. I'm a small eater and I was full but not stuffed.
The third time we tried the Neptune pizza ($17). The crust is really, really thin so be aware of that. More of a light meal than what you would expect from a regular pizza. This one had shrimp, smoked salmon, red onion, arugula, and a sweet vinaigrette. It was good, but nothing mindblowing and I wouldn't pay $17 for it again. It also won't make you very full. Crust is really hard and thin and breaks apart when you bite into it and slightly burnt.
Looks like Smash Kitchen can be hit or miss depending on what you get but overall pricey for the portion.