I actually think that créme pastel shades can be a bit hard to paint with sometimes, there fore I don't use them so often. Still I buy them. Escpecially if it is purple, I am very attracted to purple.
A grape fit from OPI is a little darker pastel purple that needs three coats to cover. But if you have the patience to be careful it is worth it.
I top it all with my new favourit Seche Vite. That top coat is fantastic and makes the polish dry very quickly. I don't like though that it makes the polish shrink a bit on the nail.