I've seen Smashburger a few times before. It raised my attention because it's logo reminded me of Gamestop, as shown below.
I ordered the Smashburger, which came with cheese, ketchup, onion, pickles, and their smash sauce. I also got their smashfries which was tossed with olive oil, rosemary and garlic. A lot about it strangely reminded me of the burgers at the BYU Creamery: The loosely-pressed patty, the red onions, the lettuce that wasn't iceberg, and the egg bun. Plus the fact that they had specialty-seasoned fries. All this together costs a hefty $7, plus the crazy %10 sales tax here.
It tasted good. The meat was nicely seasoned and the other toppings went well with it. I have no idea what was in the smash sauce but I barely tasted it. The fries were really good too. If the fries were by themselves then there would be nothing special about them. In the rosemary and garlic, however, they were uniquely very tasty.
Was it good? Yes.
Will I go there again? For the price, no.