No. It causes more inconveniences than conveniences. It was way more functional for me when I didn't have to look at the keyboard to lower brightness, volume, etc. I don't use any of the extra functionality it adds because there are just too many positions to remember for each specific app, and it's just more convenient to use the keyboard shortcuts or trackpad. Also, the little arrow to close the app functions and open the normal F key functions is way too small, and I end up hitting the brightness button or an app function button instead way too often.