Hi there! I'm new here. I switched cold turkey today!
Yesterday I stumbled on a topic on Reddit where the Dvorak layout was discussed, and someone recommended Colemak. I knew about Dvorak as I had tried it some years ago. But I found it too hard to pick up then, so it remained on my "to do some day" list. But Colemak was new to me, so I let Google give me a quick tour. :) I was quickly sold that this was worth trying.
I taught myself Qwerty 25+ years ago and I've grown quite comfortable with it, although I never learnt proper touch typing. I did about 45 wpm, using ~6-7 fingers. I also have some experience typing on a standard Modern Greek layout.
But then this morning I switched --cold turkey-- to Colemak, and touch typing to boot! I spent about 6 hours (plus breaks) on the on-site typing lessons and now I know pretty much where all the letters are. But I still need to think about it a lot, so it's slow. I'm doing about 12 wpm now. So it's a question of (re)training muscle memory and I should be picking up speed. :)
As a Linux developer I do quite a bit of coding. But having so many of the often used symbols assigned to the pinky doesn't sound very handy to me. So I'm probably going to do a programmer's variant and assign them to the number keys, along the lines of Programmer's Dvorak.