Channelwell has always made some pretty excellent power supplies*...for all intents and purposes, CWT and Seasonic are essentially the measure by which other power supplies have historically been judged (best examples being the original TX750 and PCP&C Silencer 750W, two of the highest rated units multiple years ago. The old TX750 was based on CWT's PSH platform , while the PC Power & Cooling 750W Silencer was a variant of the S12 platform).
*There was an issue with CWT built Antec units ~5-6 years ago,the theory at the time was Antec wanted the units built cheaply and the capacitors that CWT originally specced out on the PSH platform were replaced with much inferior Fuhjyyu units (other PSH platform supplies utilized quality capacitors). Those capacitors were much less effective as a filter, and life expectancy was quite a bit shorter than quality ones from someone such as Nippon or Nichicon. The number one thing to remember however is that they're a manufacturer, they'll manufacture whatever the customer specifies.