I went today after having purchased a Groupon some time ago.
Food was very average. Burger a bit stiff, but edible.
My experience was not good, would not go back. Food took 30 minutes to come, server forgot to mention that bison was not available upon providing menu initially, place is understaffed, was charged for 8oz when I initially asked for a 6oz burger.
Washrooms have nice bird-chirping noise, but the sink faucet control is broken.
Thumbs down!