I think I must be in the minority here, but I just didn't like Smashburger much at all. The service was speedy and there was no problem, the restaurant itself was clean and well designed.
However, The food really left a lot to be desired. The shake I got was pretty good, but the fries tasted like they had been cooked in oil that hadn't been changed in weeks. My burger itself was somewhat dry and rather tasteless, I couldn't finish it.
Perhaps it was just an off day or perhaps their burgers just aren't that good if you don't load up on toppings. I may try it again, but I won't be going out of my way to do so.