I recently had the opportunity to try this burger joint in Denver, and must admit that I enjoyed it much more than I thought I would.
Had the classic Smashburger, which came on an egg bun, with lettuce, tomatoes, pickles, onions and a 1/3 pound patty, and some Smashsauce.
*Egg bun (nice and sturdy and held the burger together, for the most part)
*1/3 pound beef patty (this was just the right thickness ratio for the hefty egg bun)
*Smashsauce (which is nice and savory, and none too sweet)
*Red onions (which were too raw)
*Messy (this is not a burger you can eat while driving)
*Pickles were rubbery and too salty (minor complaint)
All in all a very good burger.
Tastes like what the "Six-Dollar Burger" at Carl's Jr. should if it was done right.
It's a nice bridge between generic fast-food burger and more high-end gourmet burgers.
By the way, pass on the french fries and get the haystack onions which are amazingly addictive. Oh, and the root beer float ain't too shabby a way to wash it all down with.