To be honest, I find labelled keys bad for learning. Then you learn to peer down at your keyboard, which you shouldn't do.
I can't touch-type comfortably enough on a standard flat keyboard to do it properly, I've found, but when I briefly flirted with using Workman(Something about it parses in my head so much better than Colemak) I found it honestly more helpful to just spend a few hours learning where the letters were and going from there. Home row is learned fastest and then the less-used keys are a bit more squirelly for a while. Just keep a printout somewhere you can look over to.
Ultimately my pinkies are just too short for 'proper' touch-typing on a standard keyboard to ever be the slightest bit comfortable(It started hurting within a half hour every time I tried) and I went back to qwerty and my weird non-standard way that involves my hands moving around that doesn't seem to cause me pain.
You've just made a case
for having legends on the keys. That "weird non-standard way that involves my hands moving around" is a more ergonomic way to type than "proper" touch typing, especially the kind that you are supposed to return your fingers to the home row all the time. For the way you (and I) type it's useful to have legends on the keys to orient yourself every now and then.
I partially disagree with jacobolus. If you swap W and T, moving A to F and S to A (making SFDA), moving H to J and L to ; and ; to H and J to L you can appriximate a decent layout, by using the current AWEF and JIO; (which would then become STEA and HIOL) as home row keys by resting your fingers in a more natural curve pattern. So it would look something like (home keys in red):
Q
TERWYU
IOP[]
SFD
A G;
HKJ
L'
ZXCVBNM,./
That way your "home" row is STEAG;HIOL which is quite decent, with N within easy reach of the right index finger. So ETAIONSHRDLU are all in easy reach.