Customer opinions are strange things. I used to work with a leading personal computer manufacturer in 90s. Since I was in customer support, only thing I heard was defect issues and the customers being dumb asses. Compare to total number of PC being sold against number of defects were very low. But most of the people in customer support had same opinion of never buying what we sold. I'm sure customers who experience the problems had same opinion. And with pipes, I expect same results. Once you experience a problem, you expectation will slide a little. Defects and slip through QC compare to well made pipes are far and in between. But once you experience bad side of a brand, it leaves bad taste in your mouth. Use to have saying "it's easier to lose a customer than to gain one. Keep them happy."