Yeah, it’s very much alpha software, but it works surprisingly well for being in such an early state. I’m using it as my keyboard now, and it works well enough, but certainly not perfect.
Then again, I’m willing to deal with a lot of nonsense to avoid Google, so YMMV.
I hear the speech to text is pretty good. I haven’t tried it (I hate dictation), but maybe you could give it a whirl before you give up on it, it’s supposed to be its killer feature.