Helpful though not perfect
I got these for eye puffiness and allergies, and I do find them very pleasantly soothing, though I'm not sure I'd say they objectively change how I look.  I also hold them against the nape of my neck if I'm not feeling well or just having an overheated kind of day, and that feels cool and lovely.  Taking off one star because I cannot just lie down and balance these on my face - I have to hold them on.
Rating: 4 stars