Sounds about as good as ElevenLabs.io
Hopefully if this ships on AWS, it will support SSML tags.
I used Elevenlabs.io for all the voices in my VR game (https://roguestargun.com), but its still lacking on the emotion front which is all one-shot
Gamedev ain't my day job, and the reality is most folks outside of hardcore flightsim enthusiasts don't own joysticks