I had the opportunity to use one briefly on the last run... Before using it, I thought "Who needs a touch screen, that's stupid" until I used it... I want one now, badly! Such a bad ass screen, super responsive, and SO MUCH EASIER to manipulate the waypoints, colors, and organize stuff. Other than my 10 minutes of programming it for a person on the run, I haven't had any other experience with it. In that 10 minutes I was sold, though! Spendy, but super nice.