I will hit the button and then shift my hands to the numpad so that I may start typing in my calculations. The only custom key that I use on my keyboard is the Calc button. It offers some new functionality like conversions, which is cool, but not worth the change when it fails at the basic tasks. The classic calc.exe has been replaced with a Windows 10 Modern app. One of the minor annoyances that I have found with Windows 10 comes down to the simple calculator app.
