I would give it a five start. However I don't think any burger place should get a 5 start (what do we leave for a fancy steak house!!)
All I can say is that they have amazing burgers. They also have a long list of different french fries selections.
The place has a sports bar feel to it (unlike the fancy one in San Francisco). They also have a slightly different menus from their other location. But still a very nice, clean, and service oriented place)