In reviews of
unrelated products (in this case, many of their PSUs), CM was found to be dishonest. Many companies exaggerate, or offer best-case scenarios that are unrealistic at best, but claiming protection circuits that are in fact missing is an outright lie. Here are some sample links:
LL=Liar Label, MC=Missing Circuits
1. LL:
http://www.hardwaresecrets.com/article/Cooler-Master-Extreme-2-475-W-Power-Supply-Review/1550/11
2. MC:
http://www.hardwaresecrets.com/article/Cooler-Master-Elite-Power-350-W-Power-Supply-Review/1184/9
3. LL AND MC:
http://www.hardwaresecrets.com/article/Cooler-Master-Elite-Power-460-W-Power-Supply-Review/1005/9
4. LL:
http://www.hardwaresecrets.com/article/Cooler-Master-eXtreme-Power-Plus-600-W-Power-Supply-Review/1034/9
5. LL:
http://www.hardwaresecrets.com/article/Cooler-Master-eXtreme-Power-Plus-550-W-Power-Supply-Review/969/9
...I think that's enough. These aren't dings for poor quality, but for dishonesty. Many others get dinged for quality; my favorite is probably the remark in HardOCP's review of the GX-650 calling it a "polished turd in a box."
So anyway, there you have it; a company which should not be supported, regardless of the quality of its other products. And get this, it gets worse. Having been called on it, they're going to pull them from the North American market and foist them off elsewhere. This per Gabriel Torres: "I had a meeting with them during Computex and, according to them, they are removing all power supplies with fake wattage from the North American market (and dumping them somewhere else)."
So, it isn't so much that their quality is low on some products (it isn't on others; many people love their HAF cases), but that they are dishonest. A rational individual does not support dishonesty. Fortunately, in this case you'll actually end up with a better product too by getting the Corsair.