went with the cheap (or mid range) behr and it was good enough because i'm renting and i was painting white walls darker color. once you actually know how to paint you could get away with one coat, but two isn't a terrible idea. still looks good a couple of years later, but i tend to keep things dark here, which minimizes the effect the sun would have on it. i suppose that is the real mark of quality with paint. not what looks good, but what still looks good, even years later.