I LOVE LOVE LOVE this calculator. It has the buttons that you can feel press down, if that makes sense. Not the ones that feel like they are made of a lump of rubber. Allows for quick use, and I don't have to look down b/c I can feel, easily, if I pressed the button I wanted or not, and keep it moving. I love that I have a free hand and can stay focused on my placing in a list while I use it. And I use it about 30-1000 times a day.