My experience with the brake dust hasn't been too traumatic, largely thanks to tips I've gleaned from the forums here.. I use the Klasse twins, so my wheels have 3 coats of sealant glaze on.. brake dust accumulates quickly, but once the wheels are cool it removes very easily with a small California car duster (used only for wheels, naturally). I do that every 2 days or so, and wash as usual every 1-1.5 weeks. The wheels look great, and no acid required.