Depends on how much I have to be scanned. If it's a handful of things vs an entire cart full of groceries. At this point I don't have an issue generally with self checkouts as a replacement for express lanes. But I refuse to waste mine and everyone behind me time with 100+ grocery haul. I've been a cashier before. I know how to be fairly efficient at self checkout. But I also know being able to put all my items on a conveyor belt while a trained cashier scans and bags is just faster.