I do both Costco and Sam’s Club. Nothing is faster or better than the Sam’s Club Scan and Go. Without Scan and Go, Costco is far superior for net throughput.
Scan and Go is the best feature I have ever seen in a shopping app experience.
I use Amazon’s nutscan. Go to Whole Foods, walk out the door, drop trou and flash my nuts. (Need panoramic view to get it all in). Go home snd eat the inferior, overpriced 365 brand food.
Costco has scan and go in some stores. They’ll probably be getting it in all stores. I don’t want it. I’m happy with letting them do all the work and scan for me while it’s in my basket. It’s so fast - much faster than I could do it.