I thought I'd compare Oh Joy to two other shimmery whites I'd gotten from this year's holiday collections, China Glaze Frosty and Orly Winter Wonderland.
I used the aforementioned five coats of Oh Joy but only three coats of the China Glaze and Orly. Obviously Frosty wins the opaqueness category, and I think Winter Wonderland wins for texture. Oh Joy wins on price ($2.99) and probably versatility; since it is so sheer but not streaky I can see it being great for layering. I tried it over Orly Naughty or Nice:
I like the little winks of blue and purple I see in there. I'm not sure if there's a Color Club dupe of this one, as there usually is for Studio Ms.