How do you cope with parentheses being just one key off between US and most European layouts (above 9 and 0 vs. 8 and 9)? I mean, I can retrain my muscle memory to a completely new position, but just one key to the side is unbearable!
And even with the Italian layout, I still have no idea how to type an uppercase accented E (È).
With compose key, that's trivial!