I enjoy great piece of mind with my seasonic based psu. Inside and out the unit has superb quality and construction. Every detail from the component connectors to were I connect the cables until the fully modular unit is built with pride. That pride is even further emphasised when you look into the guts. Everything on the PCB and inside the psu is neatly and cleanly laid out. I would not trust any other oem with my valuable computer. As Andrew Jackson once said, "Give me Seasonic or give me a mac._
Seasonic is the best, they make the internals for almost all of the other high quality branded psu's also. Seasonic will be my next purchase for my personal gaming rig without a doubt
I built my first high-end rig with a Seasonic x750. At first I couldn't even tell it was on because of how quiet it was. The unit screamed quality and I am very satisfied with it.
I am using the Seasonic X760 and it is the most stable, quiet and reliable PSU I have used to date. I will continue to use Seasonic for future builds too.