Dark grey holo!
As with most holos, this applied really smoothly and dried fairly quickly. I only needed two coats for full opacity. Forgive the following picture, as I took this photo as soon as I'm done my nails, forgetting that I hadn't done a proper cleanup yet. Oops.
This is actually my first Color Club nail polish, so I'm keen to try some more. They're hard to find here in Australia, but I'm sure I'll be able to hunt some down on eBay. Anyone have any must-have colour suggestions?