The most reliable assessment of models is the general feedback online. You know up front that this covers a spread of owner expertise and expectations, and it is usually quickly obvious if there is a major problem or problems, some minor issue(s), or essentially trouble free: and this isn't restricted to 'at release' alone; emerging problems like mazak rot, wear out and other failures, are picked up over time. Better yet, the more informed participants typically analyse problems, and propose or even specify and/or demonstrate solutions.