PetSmart is the world's largest pet supply and services retailer, providing over 10,000 products to meet all pet needs. Customers appreciate the varied selection for dogs, cats, birds, fish, and small animals. Many have found the store nicer than other options, like Petco, and enjoy the convenience of shopping online with a quick pickup option. PetSmart offers a 30-day guarantee on some products, allowing for returns if pets do not love the items. However, some reviews mention issues with the fish section, including dead fish and inaccurate pricing, as well as slow assistance when needing help. Overall, PetSmart aims to exceed expectations with their customer service and product variety.