I never got around to using the "Scan and go" thing at HyVee, like Sams has., But they need that back. It's life-changing at Sams. Scan with your phone as you put into your cart, click the pay button and walk out of the store like a boss. You still have to get frisked at the door, but it saves waiting in the checkout line with the unwashed masses.
I understand the hate for Walmart/Walton affiliated stuff in general, but as a store Sams's blows Costco away for their ease of checkout alone.
I live in Overland Park and have a Sams store that's closer to the house. The Costco is an extra 5 minutes away and is an absolutely nightmare store to visit. Over the weekend I went with the oldest to get a slice of pizza after the EKL (Overland Park high school conference) swim meet at Blue Valley North (basically across the street from Costco). I couldn't even park, finally finding a spot near the loading dock that's typically reserved for workers. The checkout lines were a nighmare, the store was packed, and it reminded me why I never go there (they really need to build another store near 151st as that one services too many peeps).
In Sams the aisles are wider, the products are just as good (I used to find Kirkland brand items to be of better quality but feel Kirkland has taken a nosedive the last decade), and the continuous scan app saves time. I'm out of the store in 20 or so minutes where a similar run at that Costco would be 45-60 minutes.
Every so often I'll go to Costco to load up on peanut butter. Otherwise I avoid it like the plauge.