I love this milky finish over abstract patterns (eg berry paleta or pastel skies) - it softens the finish while still giving shine. It gives them a depth like opals.
I found that this top coat did not self level very well and had an uneven finish. I think it would be really cute on lighter colors, glitters, and designs that are already marbled. I put it on the Daisy B design and the uneven milky finish was very apparent.