Hello Bistro is basically Eat-n-Park with a nice pair of shoes and a haircut. The burger was edible, on a nice bun, but otherwise unremarkable. Institutional patties on a high-end bun. French fries were nicely crisp and flavorful.
Service was poor--surly cashiers and a twenty-minute wait for any order with a milkshake--and burgers sat getting soggy until the shakes were ready. Perhaps due to the lunch rush, but still not a great experience.
The salad assembly line is the restaurant's centerpiece, I'll go back to try one--but there are much better burgers to be had for a similar price Downtown. Definitely not worth the wait and the crowd.