I've been going to Carl's for the past few years and it's a lot of fun. I don't usually eat here, but I need to do that more often. I forget how good the food is. A friend of mine had been hearing about Carl's for years but hadn't had the chance to go, so we went for dinner one night. We shared the cheese balls (delicious) and each had the BBQ cheeseburger. The BBQ sauce seemed to be missing, but Carl's burgers are amazing no matter what. The fries were a mix of regular and waffle (both were really good). And we shared a couple of desserts: the brownie sundae and the chocolate cake. All I can say is omg.
Service was fast and friendly. Food prices are pretty low and the portions are rather large. Some reviews say that the beer prices are high, but they always seem to have specials. I'd say liquor is about average price (the vodka is, anyway).
There are regulars that come in for dinner/happy hour, and then a younger crowd later on. Things start to get crazy around 10 or 11pm.
This place is a must if you're ever in the area.