My short sample of one was a defective 30yr shingle. Most brands have had their share of issues over the years though. I was told they were defective on a property that was purchased and then again when a hail claim came around. Most roofers in my area prefer other brands. If the style and look is what you like in Atlas, then get it. I like the way Elk looks, but that Elk style was not available in product line I was after.