PetSmart is the largest pet supply and services retailer, providing over 10,000 products for various pets, including dogs, cats, birds, fish, amphibians, reptiles, and small animals. Customers appreciate the wide selection, especially for dog food and other essentials. Many find the store well-stocked and clean, with helpful staff to assist them. However, some reviews mention issues with the cash register staff's behavior, which detracts from the overall experience. While many shoppers value the convenience of shopping online and picking up items quickly, others have faced challenges finding specific products. Reports of sick fish purchased from the store have also been noted. Overall, PetSmart offers a good variety of pet supplies and services, but experiences may vary depending on location and staff interactions.