Ps4 Pro since January. Had a PS4 Original before for two years. The noise seems to be almost vanished with the Pro but some games like Uncharted 4 or Black Ops III still get a little noise when loading stages but I think it's the least you can expect.
Cuh-1001a (American first run-still sealed)
Cuh-1100a (last of Japanese first run-still sealed)
My personal one (day one-upgraded 3tb-3.5 hdd with air cool hard mod)
Uncharted 4 edition (still sealed)
Metal gear solid tpp edition (still sealed)
PS4 pro (first run-still sealed)