H-E-B took Amazon's spot as the grocery retailer with the best financial results and the highest consumer ratings.  According to the Dunnhumby Retailer Preference Index (RPI) study, H-E-B beat Amazon by delivering better savings and assortments and a better-quality experience. From 2020 to 2021, Amazon led the RPI ranking as the company helped consumers save time and provided a seamless e-commerce user experience. The study examined the $100B U.S. e-commerce grocery market by surveying 30,000 consumers. It also found that the pandemic increased the share of Americans buying groceries online to 50%. Amazon, Target, Sam's Club, and Walmart were the highest-ranked retailers within the digital grocery subsector.