Obvious link but maybe not everyone knows about it. I used Keybr for 2 weeks, but was frustrated by the lack of improvement and the fake words. I now use Monkeytype and it's great. You can type real quotes, and it has Colemak emulation if you haven't installed the layout yet.

I can only type 25 WPM so far but I seldom hit the wrong keys and I try to use it at work as much as I can. It's really better than QWERTY so far.