I got my R75/6 15 years ago when I got my father's old R75/6 it had a Dyna III electronic ignition. I have had exactly zero issues with it. I make sure I clean the connections but otherwise it is left alone and simply works.
Would I convert to one? Probably not, if I had one with stock points I would leave them be. Both systems work fine. One needs a little more maintenance, but otherwise they both work well.
Speed doesn't kill anyone, suddenly becoming stationary, that's what gets you - Jeremy Clarkson