I genuinely feel that the quick change mechanism is a step in the right direction:
Advantages:
1. Quick & easy to change straps, using Panerai tool/toothpicks, etc.
2. Minimises/prevents scratches on the lug ends
3. Stops screw-in pins from "unscrewing" themselves through prolonged use, for those Pams that are still on the traditional screw in pins.
Disadvantage: Possible hardware failure that will require a new casing.
It is not a fact that repeated strap changes WILL cause the quick change mechanism to fail.
But for those Pams that have the screw in pins, you can change to spring bars for the ease of changing of straps. But of course, those spring bars may fail too. I had 1 set that was bent out of shape. Also noticed that my 512 has spring bars as standard!