Tried the one in Hollywood last year. It was OK. We had the Cali Burger and the Umami Burger, eh. I didn't think it lived up to the hype. But I do think NYC's burger scene is very strong right now, anyway.
Umami burger? Well how about a MOS Burger outlet too? Tranquil interior, a wash basin right in front and burgers that aren't overwhelming. If I want to sit and enjoy a hamburger meal, I'd go elsewhere, but on the run, my vote goes to the acronym.