I bought a set of doubles this week, and it was in my hands within 48 hours of ordering.
Played Sat and Sun, both days humid and hot, days I would typically have significant fogging problems. The goggles stayed completely clear and my glasses only had a little fog along the top.
A significant improvement over my usual experience. To me, well worth the investment. After I had them on I did not notice they were there.
When the elephants fight, it is bad for the grass. When the elephants make love, it is also bad for the grass.