Fun, but not the greatest durability

So Del Sol Nail Polish changes color in the sun! How much fun is that?? I have a couple of different ones now, my most recent being a color that goes on clear and turns reddish pink in the sun. I do like it, and it does change color, however I have found that I have to wear 2-3 coats before it is dark enough reddish-pink to be noticed. Otherwise it is just a light pink. It also chips easily and requires reapplication after only 2 days. I prefer a polish that has a long durability. However, it is fun to wear and I will use it.