[blep-arsh]

I'm not referring to keyboard ergonomics in my comment; I just can't input some of the required key sequences reliably and without making mistakes (not good at playing the latest Zelda game with its key combos either).

For example, I'm sometimes transposing characters, e.g. q: instead of :q, or :w! command instead of :w !command, that sort of thing. Undoable, of course, just not with a simple u.

Modifier-based shortcuts in other editors and IDEs appear to be more forgiving.