It it based on the FSP Aurum design, which are group regulated. Voltage regulation, ripple suppression are the weak points at ~600/700W load. The original Aurums are also noisy. <-- from techpowerup.com review
They do like the 10 year warranty, but there re other favorable PSUs for the same or less money. An Antec or xfx or Seasonic or Corsair (not CX line) would be much better.