I have the pink and purple colour bugs. My first application was so disappointing coloured dust everywhere but my hair. Then I had a look on YouTube and discovered that it had to be set with hairspray, fair enough so I tried that and it stayed in place.
The colour pay off I my medium brunette hair was ok, not the richly pigmented dip dye hair seen on models or adverts for the product though, which is a bit misleading.
Packaging wise I feel this would almost be more suited to a wind up stick than a flat disk as it hits pan after not a few uses.. I have thin fine hair and wasn't going to town on it so that was a bit disappointing too. There really isn't much product for the money spent. I'll use and enjoy it until I finish my colour bugs but will not be repurchasing.