I have used Colemak every day for two years now, I am very happy with it. But I still mix up "s" and "r", with the embarrassing result of sometimes addressing a "Ms" as a "Mr".
I would be happier with a Colemak where the "s" stays in the same place as on a QWERTY keyboard, and the "r" takes the place of the Colemak "s" i.e. QWERTY "d".
Is it just me, or does anyone else experience the same problem?