My sister gave me this polish as a gift for my birthday. She knows I love blue polishes and I think she did great picking this out for me! I don't own many navy polishes, actually I think I only own one other navy and that's just a plain creme polish.
Butter London Big Smoke is a metallic navy blue polish. I don't wear metallics often but I think that Butter London does a great job with them. I used two coats in the pictures below. I had to do slightly thicker coats otherwise the polish would start to drag. The thicker coats didn't affect the dry time though.
I really love this color! It's a great polish for Fall too!