Never tried the Okki Nokki RCM-5.........simpy because I bought the HW-16 in the early 90s and, after two decades, its STILL in perfect working order.
I use the Walker Audio Prelude (4 steps) Record Cleaning System with the HW-16 and I've only changed the vacuum tube strips twice with Disc Doctor replacement strips.
Nothing broken in 20+ years and still working like a champ!