And I can understand what you mean about them, but you don't know all their firm issues, like in all firms... In France, on Tellement Nomade we all, or almost, think that JH audio is the worst quality product ever, just because two of us have had problems. But, is that entirely true that JH audio product are bad handmade ? I don't know and I'm very circonspect because I read many good feedbacks too.
The SM64 tested on the rinchoi blog was undoubtly defective. ES contacts him to send him another sample, because it was a friend sample that was tested, and in introduction it was disclaimed that he doesn't know if the SM64 was efficient ! But, he never answers, sooooo I'm very circonspect too with that insane benchmark.
Concerning the warranty, here in France, traditionally we just have 1 year warranty, but thanks to European directives we have to transpose, we normally have to apply 2 years warranty like in Germany.
The best way for constructors is to well communicate about defective products, like did Focal for example, but it's even harder to recognize his own mistake :s