I don't know enough about behr paint to say whether it's good or bad. (I'm not a painter) often people's perceptions come down to what their biased towards (chevy or ford, their both crap). Some people hate Home Depot(as we all should), so they automatically hate behr paint. I've used Behr and didn't like it because it was too thick, but it could very well last a long time. I'm not overly enamered with ratings based on a speeded up aging process, it's just not the same. It is the only thing we have to go buy that has any sort of credibility. General consumer satisfaction can be telling but often wrong (pay 2000 vs 1000 for the same bed, and your opinion will be different) Unfortunately everything changes every few years (models, formulas, etc) and so it's impossible to know what is good today. Behr is no longer at the top however, wal-mart paint is, and dutch-boy. Val-spar came out on top for exterior. As for what I use, I let my painter decide.