I've been there a few times in the last 10 days and came up with this observation. Don't go during the lunch rush. That would be anytime around noon to 1:30. Because of the high volume of the place, there's no way for them to ensure that you get your burger done the way you like. During the rush hours, even if you ask for medium rare, it comes out overcooked, however the fries tend to come out pretty good because of the turnover. On the other hand, the couple times I've been there during the off-hours, I've had really good burgers, cooked to my preference at medium rare, but the fries were inconsistent as I recently got a batch that was probably sitting around for longer than I like. Still, I'm very happy to have this place near the office.