After three years of use, still a real eye-catcher! At that time I used it at school, at university and still today it draws attention to itself. The calculator is not only visually very cool, but also still offers additional functions that in gray can not offer his brother! (Not particularly useful and therefore not allowed in high school.) So he has everything you need. It is easy to use, is identical to the version in gray when it comes to buttons. Highly recommended for the price in any case.