So this was very, very exciting until I realized you have to be using Google Cloud Platform to sign up for the preview. Unfortunately all of my stuff is in AWS and I could move it over but I'm not going (far too much hassle to preview an API I may not end up using, ultimately).

Regardless this is still very exiting. I haven't found anything that's as good as Google's voice recognition. I only hope this ends up being cheap and accessible outside of their platform.