OEM blades lasted over 6 years, only needing an occasional wipe down getting them working well again but not anymore. Saved $25 getting replacements from Costco rather than a new OEM pair.
I usually wipe them down with a wet wipe if they start getting streaky. They also tuck in pretty well when not in use and I’m pretty diligent clearing off my windshield in the winter so nothing really gets stuck underneath them to deform.
I’m also parked in the shade, so very little sun exposure to cause dry rot.