I also use the koolertron and I love it. I've had it for over a year. I had a Comfort Keyboard ErgoFlex for over 10 years before. My favorite part of split keyb

I also use the koolertron and I love it. I've had it for over a year. I had a Comfort Keyboard ErgoFlex for over 10 years before. My favorite part of split keyboards is reprogramming the left spacebar to backspace. Second best part is the keyboards move slightly day to day, so you aren't always in the same rigid position. As for the koolertron, it's main advantage is space saving. Many split keyboards take up a ton of desk space. This one does not. Plus it looks nice and the keys are really smooth.