My own personal experience with Simaudio has been very positive. I own a Moon 391 and have had great support from my dealer. The 391, like all Moon products that I have seen, is built like a tank, works flawlessly and sounds great. I wouldn't hesitate to buy one of their products.
SimAudio Moon - Impossible to get a hold of for support?
I am thinking about investing some serious money into buying a Moon Audio 861 amp. It sounds so good! But their support seems to be horrible. I sent a email to them and never got a reply. I called their number in Canada and got a option to 'hit #6 for english' in which I did but I got French. If my amp ever had issues, how would I get a hold of them? They seem unreachable.