I keep seeing those (cheesy) commercials for Hot Buns and before I spend my money, I was wondering if anyone has tried them out?

More specifically, has anyone with 3C or kinky hair tried them? I'm not sure if it would work with curly hair cuz for it to work your hair must sliiiiiide around the bun itself. And I'm sure you fellow curlies know that our hair doesn't slide around much of anything easily lol. Thanks!
3Cii high porosity, BSL (when straight).
Hair tends to clump at the bottom and be puffy at roots.
Condish: Suave Coconut
Styling Products: Vatika Oil, Sunsilk Captivating Curls Mousse, Garnier Fructis Curl Gel