Do silicone wiper blades really last longer than rubber?

Silicone formulations like Rain-X AdvantEdge are marketed as lasting roughly twice as long, and some r/cars commenters report multi-year service. But there is real disagreement: other reviewers on r/Volkswagen and r/MechanicAdvice say Rain-X-branded blades left a film or began squeaking within a few months. Expectations should be calibrated to your climate and how aggressively you use the wipers.