It's your typical big box pet store. They have all the normal brands of supplies, food, etc. including Science Diet, our cats' normal go-to. If you're looking for the fancier or organic brands, like we've been trying to switch to lately, you might be better off looking elsewhere.
Their employees are always friendly and helpful, especially in the lizard/fish section. We buy crickets for my husband's chameleon and gecko here, and have never had any problems. Prices aren't cheap but they're generally reasonable (and are always cheaper than their competitor PetCo).
You know what to expect from PetSmart. You'll get what you expect at this location.