Opinions on Brocks Quietcore Ct exhaust Gen 2

[Piledriver]

I'm in the market for a great exhaust system. I want weight savings, power increase, ease of maintenance( oil changes ), but don't want ear splitting volume.
My Gen1 had a Yoshimura that sounded good without being too loud but probably didn't gain me much if any power.
Brocks CT claims to perform as well as the Alienhead and the Quietcore may be quiet enough for my taste.
Anyone have this system?
Opinions?

 

[04LE]

I have the regular ct (dont know if different from quietcore) its certainly quieter than the ah system. Dont have any problems with the oil changes using the knn filter. Only negative this vs ah is ease of cleaning rear wheel.