Very good burgers, very poor service. I've been here several times and this has been true every time. Doesn't matter what time of day it is, or where you sit, the service is always ice cold and the burgers are always delicious.
I know a lot of people can look past service issues, but I'm not one of them. It measurably decreases my enjoyment of going out, and it's just not worth it. Since you can get great burgers and great service at other places in the vacinity.