I am not impressed with my hope pro IIs, i repalce the front bearings every 3 months, I have also repalced the rear 3 times in 2 years.
THat said my GF’s old XC hubs havent been touched in 6 years, and I know many others who have had similar longetivity wirth their older hubs.
Why are the latest stuff much poorer quality.
As for CK their headsets are nice, but the design is not good for longer travel forks.
Problem with CK is that its so precision engineered, everything they fit into isnt!!