There are two Trader Joe's near me. One does a single line and the others have one for each cashier. I never go to the one with multiple lines. I hate it. The big, huge like that goes to the back of the store for the one with a single line.... I love it. I moves fast and I don't need to worry about picking a line. Even if it went just as fast as the other type, I'd prefer it, but now there's reason to love it even more.