An example where Kicad fails with external consistency is the use of the
mouse wheel. While all EDA, CAD and simple drawing applications I've used
in the past have the following mapping:
wheel -> up/down
shift-wheel -> left/right
ctrl-wheel -> zoom
Kicad has the following mapping:
wheel -> zoom
shift-wheel -> up/down
ctrl-wheel -> left/right
And this is probably my biggest gripe with Kicad. Even after several weeks
of using Kicad, I still use the wrong one in the first try. If possible,
I would advise to change this before the release, as the release will
attract a lot of people who have never used Kicad before and they will
for sure stumble over this as I have. Especially as this cannot be changed
in any of the preferences menus.