I ordered four of the six colors in the collection: Kendal, Kennedy, Kristen and Carey.
All of the four shades I bought were excellent in terms of formula. All but Kristen could even be one coaters if your application is very good - Kennedy in particular was nearly perfect in one coat. The Zoya brush is quickly becoming a favorite of mine, and each of these polishes applied beautifully. Wear time was good for me - I got probably 3-4 days out of Kendal and Kennedy, though Kristen chipped the morning after I applied it and I only wore Carey for about 24 hours.
As usual, I used Palladio Fuse base coat, Palladio ridge filler and Sally Hansen Insta-Dri (red bottle) top coat with most of these. I tried Rush 60-second top coat with Carey and it didn't work all that well. I'll try it with different polish brands though...Zoyas can be funny about top coats, which is why I don't use Seche Vite with them.
Overall, this is a really nice collection of neutrals with something that should suit a variety of skin tones. If you're always looking for more work-appropriate shades, these would be perfect to consider!