Their burgers seem to lack 'integration' -- they look good, and are huge, but the bun seems disconnected from the burger.
They make an alcoholic mud-slide milk-shake that is 10/10. Did not see it on the menu last time but they pulled it off.
The food seems to be designed to 'photograph well', and is generally well prepared, but could stand some tweaks to make it more delicious (see integration). Twice my guests and I had to disassemble the burger into component pieces to eat it.
If it were more 'diner' like it would be greasier -- the food they make is not greasy enough! :) haha