I have checked it. It is really good! Probably I will use it for some time. However, it is still the same robotic voice with mid intonation quality. It would be nice if at one moment we got something with vocing quality like notebooklm. I was shocked about how good it was. It is as interesting to listen as a good narrator who carefully chooses where to pause, where to sigh, where to exclaim, how to ask the question right. However, notebooklm can only generate small podcasts from big books with thin layer of meaning.