Best Buy offers a mix of experiences for its customers. Many reviews highlight the knowledgeable appliance salespeople and good pricing, along with quick delivery and an effective installation crew. Customer service is often praised, with staff being friendly and attentive. Some reviewers had outstanding experiences with specific employees, such as Jacob W. in the computer department, who provided exceptional support and detailed comparisons for purchasing decisions. However, there are criticisms regarding the Geek Squad membership, with claims that it is not worth the money and issues with guarantees. Additionally, customers mentioned the inconvenience of a full-day delivery window that is later reduced to a six-hour window. Overall, while there are some areas for improvement, Best Buy is generally recognized for helpful staff and a good shopping experience, especially in appliance sales.