Can't complain about the CS S setup, even with the standard GTI pads. VW do CS S specific pads which are over double the price, but not sure how good or bad they are.
The only negative of this setup is the weight, but on the road with decent dampers, the increase is barely noticeable
A slight softening of the bite at the top of the pedal, but otherwise no complaints
And being OEM, it's all silent, well, apart from a faint clicking noise from the drilled discs but that's only noticeable when driving alongside a wall or something.