Two-stars feels like a knee jerk reaction of what I interpreted as an average burger that was preceded by unreasonable hype, but when I see how yelp defines 2 stars, "Meh. I've experienced better." I think that accurately describes the experience.
Food - 2.5/5 - If anyone has ever seen that burger king whopper jr. bullying video, I can say that my shack burger looked like it was bullied in the back kitchen. The bun was flattened and didn't really fill out the wrapper it was put in. The patty was decently seasoned and enjoyable. However, when comparing to similar quality burgers, it did not stand out.
Value - 2/5 - These things are damn expensive. Family of 4 in front of me walked away with a $60 tab.
TL;DR - If someone asked me if I wanted to go to shake shack with them I'd say "Fine". If someone asked "Hey, where should I go grab a burger? I would not say Shake Shack.