Aruba Blue is a gorgeous, glowy, almost metallic looking shade of blue. It is a very striking colour, it is a nice medium-dark shade of blue which is brightened up with the metallic shimmer laced in the polish. It looks great on all skin tones, from the palest to the darkest, and also suits all undertones. The formula is excellent, only two coats are needed to reach full opacity. It doesn't apply with streaks or patches, and dries quickly. However, I would recommend using a topcoat to enchance the shine. I wore this polish for around 5 days when paired with base and top coat, and I find this to be the expected wear time for Essie polishes. I love this polish and have received a lot of compliments whilst wearing it. This is a lovely shade of blue from Essie and I would happily recommend it to anyone.