Yes Superbe is very good stuff on a practical, functional level. The quality seems the same as Record (and sometimes nicer finish). I personally think Suntour stuff would be more collectable however, if they didn't copy Campy Record design so often. The same holds true for Zeus. Uniqueness counts for a few points and copying another company's design is simply admitting inferiority.
I know all the component companies took ideas from each other at some point. But the companies that strived to combine quality with unique design (Campy, Mavic, CLB, TA) are generally the most revered.
BTW: I have a very nice '76 Suntour Cyclone rear derailleur for $20 if anyone wants it.