PetSmart is the world's largest pet supply and services retailer, offering over 10,000 products for various pets, including dogs, cats, birds, fish, and small animals. Customers appreciate the helpful staff, who assist with heavy items and provide guidance on pet products, such as harnesses for puppies. Grooming services at PetSmart receive mixed feedback; while some groomers are praised for their attention and care, concerns exist about the products used for pets with allergies. Customers recommend bringing cash to tip groomers, as tips cannot be added to grooming fees. PetSmart also offers convenient online shopping with local pickup and various services like dog training, pet grooming, pet boarding, and adoption. Overall, PetSmart is known for its wide selection and helpful service, making it a popular choice for pet owners.