Best pet store for dogs, not just in Pgh but in any city I ever lived in. The staff are quality, extremely educated people. They care that you get the right food and right product for your dog withot being judgy.
My girl is a super picky eater and they gave me samples of five different toppers. When that didn't work they gave me samples of six different dog foods to see which ones she liked. They will brainstorm any issue with you. If they don't carry a product they are not shy about pointing you to another location where you can find it. They should give lessons in how to run a business.