[wbolster]

among some other differences, colemak has better shortcut compatibility. a z x c v are on their qwerty position so "select all", undo, cut, copy, and paste are one-handed shortcuts for which many people have muscle memory.

if you are using dvorak, switching to colemak may not be worth it.

the bottom line is that any layout that is not qwerty will likely be an improvement. differences between alternative layouts are small compared to the differences with qwerty.