Application The very first time I tried applying these colors I got a little bit frustrated. The main source of trouble was really with the brush. If I could, I would switch out the Zoya brush for something more like the L'Oréal brush. Zoya's brush is just a little too small in my opinion. It's the one thing I dislike about an otherwise fantastic brand. So there is a slight learning curve with the brush and the formula, but it didn't take too long for me to figure it out. I had basically the same application experience with all six colors.
Coats The first coat for any of the colors should be applied thinly. It will look streaky and uneven, but this will not matter after the second coat. Wait two or three minutes after the first coat so it has a chance to dry a bit. The second coat can be applied a little more thickly, and will provide opaque coverage. Use as few brush strokes as possible to get the color on, or the surface may become uneven or gooey. A little unevenness is fine because your topcoat will smooth everything out.
Drying Time I found these colors dry pretty quickly, which partly accounts for why they can get gooey if you take too long on one particular nail. I've worn Avery, Kendal and Carey as full manicures. I used Seche Vite topcoat (with CND Solar Oil a few minutes later) and all three manicures had no trouble drying.
Overall What I find so impressive about this collection is that these colors really only need two coats for even coverage. Nearly all the other pastels in my collection need at least three coats. So while these are not super easy to apply like a classic red lacquer, they are much easier than your average pastel. Give them a slightly better brush and I would call them perfect.
My two favorite colors are Kendal and Kennedy, but I think all of them are beautiful and flattering. In my opinion these shades are quite chic, too. They are really perfect for when you want something appropriately neutral but still modern and interesting.
For convenience, I've collected all the swatch pictures together after the break: