I have used Canary Pre and power amp for over 10 years now, from their CA 803 through CA903 to power amp 339 to Reference model, it all goes well. The sound is honest with no sonic character of its own. They have good review from 6-moon magazine on 339 power amp. HP also did a couple of short writings on Western Electric WE93 power amp (Canary made for WE/Charles). I have no doubt about built quality and sound. Tube circuit usually have simple design and quite reliable, unless abuse or poor modification will result in potential problem.
It is hard to make comment on customer service, it all depends which dealer you dealing with and the situation at that time of dispute.
It is hard to make comment on customer service, it all depends which dealer you dealing with and the situation at that time of dispute.