KEVIN
I purchased them all new. And after time, new versions were released that improved the switch. I did buy the latest versions and replaced the older ones. The ones today are virtually flawless. And I buy them Ross-Ready with DZ-2500C machines and pre-wired (outer and inner rails soldered). If you desire non-detailing you will need to wire the trigger rails back to the DZ-2500Cs green and yellow wires.
Note these are well made but not made "metal" like the 022 they are instead made to look like scale turnouts with wood ties as a result you can't bang them up like the 022s; or walk on them!!
My suggestion is to buy a few and see how you like them.