I have used both Woody Wax and Aurora Sure Step.
https://www.auroramarine.com/store/deck-protect-kit.html My opinions are that Woody Wax seems to protect reasonably well with beading water, and it does make the deck a bit slipperier. If you don't rinse off the Woody Wax adequately, it is REALLY slick. But I found that Woody Wax does not last very long, and so repeat applications every month or so would be good. Since I don't have clean water to rinse off the Woody Wax at my dock, I gave up on it.
I have used the whole Sure Step system, including the boat cleaner, and then the Boat Scrub, which is supposed to remove oxidation. Seems about the same as soap and a scrub brush to me. Then, the Sure Step goes on, but my non-skid is a deep pattern of pyramids, so it was extremely hard to try and get the dried Sure Step out from between the raised portions. Wound up using a natural bristle scrub brush to get the best results, and they weren't all that great. The non-skid area seemed shinier, and water beaded well enough. Decks were slipperier when dry, but seemed ok when wet. I felt I used way too much Sure Step the first year trying to apply with a sponge like I do wax, so second year I tried to roll on with a foam roller. Still a major PITA to remove excess. That stuff is expensive, and using more than 1/2 a container on only an 18.5' boat seems a waste of time and money.
I know some guys who "polish" the non-skid with watered down compound and a brush. This probably does about as good a job keeping non-skid non-chalky on a 30 year old boat as one could expect, while at the same time trying to maintain the "tooth" of the non-skid.