GameStop, a popular video game retailer, has received mixed reviews from its customers. While some customers have had positive experiences, with helpful staff and good prices on games and merchandise, others have faced issues with returns and trade-ins. One customer had a problem with two headsets and was able to change the brand and get a refund, even 10 days after the 30-day warranty period. Another customer had a positive experience, with an employee named Justin providing excellent customer service and helping them find the best trade value for their games, allowing them to walk out with a new Zelda game. Customers have praised GameStop's prices on games, merchandise, and Funko products, as well as the usefulness of the PowerUp Rewards program. However, some have noted that the inventory can be low, especially for older games, as more people choose to sell their games online rather than trade them in-store. Overall, the reviews suggest that GameStop is a well-run business with generally good customer service, but customers may face some challenges with returns and trade-ins, as well as limited inventory for certain products.