Uh-Oh Roll Down the Window is a dirty olive green creme polish which is unique in itself. I don't have anything else in my collection even slightly similar, so for that reason alone I'm really happy with it. It does apply slightly darker than the bottle, and the bottle has lots of irregular dark swirls in it but that doesn't seem to affect the application.
I saw that most other posters found it easy to apply and had great coverage. I didn't find this to be the case and it took 3 thick coats to be opaque. That said, now that it's on and has a topcoat of Essie Good to Go it looks amazing. It's been a while since I've used an OPI polish and it's reminded me how much I like their brushes for application.
So here's the swatches . . .