Buying the DAS “Ultimate” keyboard (with blank keys) was a gamble. I'd seen them before and thought it would be a cool talking point, with the bonus of perhaps nobody else being able to use my keyboard! Using it has been awesome. The first thing you note is that the old habit of looking at your keyboard while typing is no longer relevant. Second thing you discover is that you DID subconsciously know where all the keys are. Finally, you are pleasantly surprised that your typing speed actually increases with the tendency to look at your keyboard now removed! Overall: Just Awesome!