Hi
Can't post review as didn't buy.
Decided to try free tier first.

On MacOs (26.4.1 (25E253)) I use headphones for sound and built-in micro for input. This is the way I like to use it.
AIDictation application doesn't allow to choose built in microphone (when headphones are active). It is in the list but you can't choose it.

And when you put headphones in the box or vice versa, AIDictation app crashed several times for me.
So, unfortunately the App doesn't look very comfortable for usage at the moment, but looks promising !