One coat was enough for medium coverage, the sort that you can get away with, but are annoyed by the balder spots:) So when I came home, I put another coat on my pinky finger - you can see that it does look much better. I also put a matte top coat on my middle finger, to show you the difference between matte and "soft touch finish" as Essence calls it.
I've been in a shimmery/blingy phase for some time now, so of course having matte black nails is not acceptable:) I put a layer of Constance Carroll's Flashing Silver on top, and two layers on my ring finger, sort of like an accent nail. I really like this polish, it's cheap and makes any dull polish liven up just enough, so it's still wearable but blingy.