I find it pretty easy. The keyboard came available with Windows 7. It looks very much like a standard version and takes up about 25-30 % of the screen and can be moved about. I am typing this with it now, just one hand on the mouse. When solving, I just hit the letter with the mouse and click, just like my regular keyboard. If I want to move the cursor around within the puzzle, I do that as I normally would. I found the 'On screen keyboard' under 'Control Panel' features and opening 'Ease of Access Center'.