I took my original one off after a couple years of not seeming to help. No change post-removal.
I'm glad to hear it does help some folks.
I expect that I'll assassinate a good number of bugs by pushing a rectangle of glass down the road at up to 65mph. Night is the worst.
I also am a guy who cleans the windshield frequently, so I don't see a lot of accumulation. I kind of figure bug splats and windshield replacements is another Jeep thing.
I guess if I lived in a land of love bugs, like when we lived in Florida, I'd try anything!