Earlier today I posted a review of Essie "Where's My Chauffeur" and I mentioned that it looked pretty similar to China Glaze "For Audrey" on my swatch wheel.
As you know, polishes can look very different on the nail and it helps when they are swatched right next to each other. Here is the comparison I did with Essie and China Glaze. As you can see, the Essie is more blue and a bit darker. I actually prefer it over For Audrey. It's more bold.
As far as formula goes, I do think For Audrey is easier to apply - but the end result of Where's My Chauffeur is worth the trouble.
Have a great day!