The Walmart Supercenter in Union is a local store that is generally well-received by the community. The staff is praised for being nice, especially towards customers with service dogs. However, the store has received mixed reviews regarding the grocery pickup service, with some having positive experiences and others finding the staff to be rude and unhelpful. Customers have also reported issues with the accuracy of shelf prices, with items costing more at checkout than listed. The self-checkout system has been a point of frustration for some, with machines not working properly and customers needing to double-check their receipts. Additionally, the long lines and lack of cashiers have been a concern for elderly and disabled customers who prefer to avoid the self-checkout option.