I actually prefer using crystal/glass nail files over regular files. In terms of the Sephora brand, I don't notice too much of a difference between these ones and other brands of glass nail files, however I always purchase them at Sephora because it's convenient and I always find myself there! I take very good care of my nails, and feel that this material does a much better job filing smoothly and doesn't feel gritty. It leaves you with a super neat and smooth shape with no need to buff afterwards as you might have to do with a regular nail file. Would recommend!