Microsoft has publicly responded to Consumer Reports, saying that it disagrees with the publication's Surface reliability findings. But the company hasn't offered much in the way of evidence. In a blog post, Surface chief Panos Panay writes: In the Surface team we track quality constantly, using metrics that include failure and return rates -- both our predicted 1-2-year failure and actual return rates for Surface Pro 4 and Surface Book are significantly lower than 25%. Additionally, we track other indicators of quality such as incidents per unit (IPU), which have improved from generation to generation and are now at record lows of well below 1%. Surface also ranks highly in customer satisfaction. 98% of Surface Pro 4 users and Surface Book users say they are satisfied with their device, and our Surface Laptop and new Surface Pro continue to get rave reviews. Long-time watcher Paul Thurrott writes: Does changing the time frame from "by the end of the second year of ownership" to "1-2 year failure rate" skew the results because more failures happen later in a product's lifetime? Also, he introduces the notion of "return rates" here. By definition, the feedback that Consumer Reports receives is from product owners, not those who have returned products. If someone is almost two years into device ownership, they are not returning the product. They're just using it. And dealing with it. So consider the issue muddled, in just one carefully-constructed sentence. Which I believe was crafted to confuse the issue. But there is more. "Additionally, we track other indicators of quality such as incidents per unit (IPU), which have improved from generation to generation and are now at record lows of well below 1 percent," Panay offers. It's not possible to understand how an "incident" relates to a "failure." Mostly because he doesn't explain the term. Likely because doing so would betray that this is an apples to oranges comparison. [...] I will point the reader to Welcome to Surfacegate, my description of Microsoft's feeble attempts to ignore and then slowly fix endemic issues with those exact two Surface models. And anecdotally, I'll point to the fact that the three Surface Book models I've used have all had reliability problems. But the biggest issue I have with "customer satisfaction" is that it's kind of a bullshit measurement when it comes to premium products.