Review (1/5): Roller barely rotates, you'd basically get same effect by keeping some metal spoons in your freezer
If this device had a motor in the handle that caused the cold head to rotate, there'd be more to talk about here, but frankly this is just two metal discs you can put in your freezer with cheaply made plastic attachment pieces to stick on a small cheap handle. It doesn't rotate on its own, you have to do that for it, and when you try to, the poor connection between the cold metal heads and their plastic bases and the handles doesn't even produce consistent spins the way it's supposed to.
You'd honestly be better served by just keeping two metal spoons in your freezer and using them the same way: put it on your skin and move it in a circular motion. If you find it's slightly too cold, wrap a paper towel square around the spoon head and rubber band it in place. Same effect.
***Overall Value***
This is a pretty blatant cash grab that offers little no nothing for what you're paying. If there was a motor in the handle to rotate the head, that would be one thing, but this is akin to selling a normal toothbrush and asking for 3 times as much many saying it's like an electric toothbrush because you can move it in a circular motion with your wrist and make your own humming sound.
Save your money, go put some spoons in your freezer. Apply to face as needed.