Review (1/5): Not a mirror at all, just silver
It's definitely not a mirror effect. I've painted my nails with gel many times and I followed their directions to the letter. It has a mirror effect that goes away when you apply the top coat. If you remove that step and don't use a top coat, it rubs off completely within hours.
If you follow the steps, it's not a mirror effect at all but a standard silver and something you can buy for $3 somewhere else.