They quickly reached out to me with the fixed file and the output is really good.
This is the first voice synthed audiobook that I can actually stand to listen to at length, and it plays well using Podcast Addict on Android, and the voice speeds up well too (encoded at 93%, listened to it at ~1.7x)
I tried to order, but it errored out because of some file not readable error, but error was fatal and with no recourse but doing everything again.
I would use this all the time if it was a little smoother. Hit me up if I can be helpful. (see my profile here for email)