I received Blue Lagoon in my January Birchbox. I absolutely LOVE the color. Not one that I own anything like so it's great to have a change. I used this nail polish with a matte topcoat from a different brand. I just love it. Looks just like blue jeans. Perfect casual color. Perfect for summer with your jeans. =) That being said, I'm still on the fence about the product as a whole. As much as I loved the color, I really didn't like the formula. It seemed streaky and didn't go on smooth for me. Looked okay after 3 coats, but the matte top coat is what really smoothed it out for me and made it a winner.