On par with most fast food joints. Nothing fancy but it was well kept and had friendly employees.
Carl's has a lot of big burgers and I usually end up going with the Jalapeño burger or one of their many specials. During this particular visit, they offered two Famous Stars for $5.00. That's a heck of a deal. What broke the deal for me was the $0.55 for cheese! WTF mate? So I'd end up paying basically full price for them. What gives? Needless to say I went with the jalapeño.
I'd return if in the area and I need a quick burger.