I don't like the positional keybindings. There is no real difference from regular keybindings configured with profiles for Qwerty, Dvorak, etc. In practice, it just means presenting them drawn into keyboards in a way that is hard to quickly search or use in the terminal and anywhere really. Where's the "line" key? Search the drawing! (Oh... it is there in th top left corner, but which exact key?) I prefer a list. So, really, it is not even that big of a "special thing" except the presentation.