I always wanted a Superflower unit. I just purchased the EVGA G5 750w and put it up against a Seasonic Focus 850w. The Seasonic was heavier and more compact, the unit was a little bit smaller than the EVGA. Because of the weight of the PSU, I was wondering if the quality wasn't as good. It was once I started to pull out the cables is when I immediately noticed the cables were heavier. It felt like I went from using CCA wire and went to OFC. This stuff is quality and VERY flexible.
That's when I knew the Seasonic was getting returned and not the EVGA unit. I have zero complaints about the G5 unit, it's a solid PSU from what I've seen so far. It was actually for my back-up rig, but I liked it so much, I put it in my main. *EDIT*
I have removed the G5 from my PC and replaced it with a Seasonic Focus Plus Platinum 850w instead. I would advise to stay away from the G5 power supplies, i'd recommend a G3 or P2 series instead.