When you say ceramic spray wax, do you mean Ceramic Spray Coating? Adam’s doesn’t carry the former, but the latter is a true coating (not a wax or hybrid wax) made easier by spray application.
i have topped Ceramic Spray Coating with Ceramic Liquid Wax, and had great results. The wax gave my paint a lot of depth and it seemed to add some hydrophobic properties. The only negative I had was that i got it on the trim and it did not look good on the trim.
So in short I think it’s worth it. Just make sure to work in small sections at a team it’s easy on easy off. And avoid the trim. If at any point you waited too long and the wax is hard to get off, a small spray of ceramic boost or ceramic waterless wash should help in wiping it down.