Left Side Backspace Delete Ctrl Alt Home End
Right Super Key Ctrl Page Up Page Down Enter Space
The keys are easy to hit, but the biggest problem is the space bar. On a typical keyboard the space bar is accessible from either thumb. This makes it so that if you are using the mouse and are playing an FPS, then you can still jump. This is not possible on the Kinesis Advantage withought modifying the keys. I use the Smartset program, and have a profile specifically for games that fixes this, but it might be annoying to some
The second is that fact that there is not print screen key on the advantage. I take a lot of screenshots for work so this is annoying. I've set one of the 4 macro keys to be the key combination I need to make screenshots, but again this required some configuration.
With that being said I still like the keyboard. My hands feel great even after 12 hours of mixed browsing, coding, and writing. My posture is better, and I don't get pain in my vertebrae next to my shoulder blade. But there are definitely things I would change if I was making it from scratch. Maybe in the future I'll Diy a dactyl-manuform^1 which has the perfect switches and layout for me.