Have Dyna S system on 2 GS's for decades NO issue's...
Just installed system on 831100E which was Green 3ohm coils, S pick-up system, Taylor Pro wires, & did the 12v Bosh relay upgrade to feed coils full battery voltage.
Noticed a large improvement in throttle response & power. The biggest mechanical advantage I can see is the Dyna S pick-up plate has much larger slots. Larger slots allow for more timing adjustment. Can't say IF your bike will want or need more timing. But Dyna has been a leader in the race scene for decades. I wouldn't think twice about any concern of parts failure from their stuff.
Majority of any failure or issue's I've ever seen has been from piss poor installation of owner's that should Never touch a wire crimper much less replacing a ignition system on a motorcycle