I just bougth it and did a little testing and it seems amazing!
I just tried two things: 1. letting wizwrite send an invoice with a specific json format (which it would send as a webhook) i just explained it in plain text and yes it did exactly what i said!!!
then i tried what i really need, i wanted to format my voice a little bit do some special things before and after my message and send it as a webook, so it gets uploaded as a .md file in my knowledge database. and yes it worked with the first try. the formatting is perfect. a lot of the KI stuff does additionall irrelevant stuff. I have to admit i just tested about 4-5 voice messages but everyone was with 100% precise.

What could be improved:
- more possibilities with the KI Prompt and the webhook: For example i want not only to send the datas for the obsidian-file i also want to send the title of the file. I cannot send a dynamic title (only a static one is possible right now, which would be always the same, which is not good). so it would be nice if i could use the KI here too (like "create a title of the voice note and use it as a varibleX and then i can use variableX in the second webhook field, or sth. like that)
- A native android app (which will come hopefully very very soon:)