Review (3/5): Great for photos, not for day to day wear unfortunately.
Pros: The effect is super cool and lots of fun.
Cons: The black gel polish itself is rather sheer and takes about 4 coats to achieve full coverage. The color change coat has a filmy finish and no matter how I did it (gel top coat, seche Vite, double UV cured THEN gel top coat), it peeled within 24-48 hours.