I like to see any pot or pan first, before buying. Hold it in my hand; it's got to feel comfortable and well balanced, the handle gently curved. Importantly, the lid should fit well down. Personally I don't rate cheap pots and pans. They never last.
Good quality doesn't come cheap, but in the long run, is good value. Some of ours have been aroundsince I was born, and still going strong.