Perhaps you should have done your homework BEFORE you purchased a 450 dollar power supply, not after. Because if you HAD, you'd have found a lot of agreement that among the more well known "brands", there isn't a lot of favor for Cooler Master or Thermaltake at the top of the product stack due to their being better, and cheaper options from other companies like Corsair, Seasonic, EVGA, Silverstone and depending on where you live, Super Flower. Even potentially Rosewill for that matter, with their Capstone M units.
Even the fact that the unit in question is made by Enhance isn't necessarily a direct reflection on Enhance. Manufacturers often build to whatever specifications the brand wants a unit built TO, so if they want a unit built cheap or if they want corners cut, that's what they get. Not that Enhance is one of the best manufacturers out there but they have both good and bad platforms as well, just like pretty much everybody.