Absolutely the best "hard" ice cream around. Not sure what other reviewer is talking about. We've been getting Kerber's cones for 30 years and a single has always been ONE very large scoop (only ONE flavor) and a double has always been TWO scoops - can be two different flavors. Sometimes I wish I could just try them all!
I will agree that the servers aren't the most tactful or courteous. Someone from the Kerber family needs to go incognito and see what people are saying.