GNC offers excellent customer service with knowledgeable staff who are friendly and helpful. Customers appreciate the staff’s professionalism and willingness to take time to answer questions and provide tailored recommendations. Many reviewers mention staff members being well-informed about products and deals, making shopping easy and enjoyable. The team creates a welcoming atmosphere, whether assisting with product choices or sharing recommendations. Overall, visitors leave feeling well-informed and satisfied with the service, making GNC a preferred destination for health and supplement needs.