Sure, I can chime in. I've been using emacs for about 18 years with meow for the last 4 or 5. I have the caps lock as control switch for about 10 years so it's not about that for me.

I still edit with chords in insert mode but meow enables me to take actions on a variety of subjects more easily (current string, until start of scope, until the next 2 -, next 5 words).

I had a few packages to do similar things before (expand-region) but none of them clicked like meow did.