This nail polish is amazing for giving the crackling effect and is the best "shatter" polish I have used (I have tried a few different brands).
It is quite fun, and intriguing to watch the polish immediately start to crackle as you apply. The trick is to be quick and use only three strokes of the polish, the more you muck around, the more likely it won't work.
The crackle effect doesn't appear to stay the same as when you apply it. Over 24 hours, it gets smaller and the gaps between get bigger. I found this reduced when applying a top coat over top.
My favourite way to wear this is with a contrasting colour underneath, i.e. gold base with black crackle over top. It looks really effective!
This polish needs to be stored in a cool dry place. Most nail polishes do, but I never used to bother. I found when I kept mine on my dresser, they quickly became clumpy and unusable.
This is the only OPI that I am not a fan of, I did really enjoy this when it came out as it is very fun to use but got over it pretty quickly. My bottle also dried out extremely fast so was pretty disappointed.
Tips: Don't pay full price, not worth it.