I have, since I love freezing chocolates and cookies. It didn't make it any better. Maybe you have to grow up with this stuff, but I didn't find it to be that good. At least Aero and Hershey's Air Delight are better in texture than Flake.
I don't think I would like that as much. I like this candy bar because it is softer and smoothr... otherwise you may as well just buy a regular Hershey bar. You should just give it to me and not ruin a good thing!