Bigbruin.com published a review on the HEC Group ACE 580UB ATX Power Supply

Let me start off by saying that I only buy 3 different manufacture s of power supplies: PC Power & Cooling, Enermax, and Antec. I have had great luck, no failures, and rock solid results with all 3 of those companies. However, after testing out this power supply and seeing how stable it performs, I would now consider HEC Group when I need a new power supply unit.

HEC Group ACE 580UB ATX Power Supply Review