I really enjoy this polish. Not only have I been looking for a red glitter polish but I like the fact that it has small glitter and some a little bigger. I've only tried it over a red polish and it looks nice...makes the red darker.
This polish does have a dark darker semi-transparent polish inside (instead of a clear polish like in most glitter polishes) so it will make any polish you put this over darker. I'd sort of rather it be clear so I could put this over other things and not have it make it darker. You have to go over it a few times if you'd like more glitter or less if you'd like less. And of course the more layers you put the darker your base polish will become.
I think this would look nice over black, burgundy, and really anything you can put your mind to! I've only seen these at Walgreens, but I know Walmart should have them soon or a later since they carry WnW now. They were $3.49 at Walgreens. A little expensive for a WnW polish, but hey.