Here's mine, that works outside of tech:
It's a great source for second opinions.
Say you want to make a CV, but you don't know where to even begin. You could give it a description of what you've been doing and ask it to help you figure out what jobs fit the skillset and how to present your skills better.
It's a good tool for such rough estimations that give you ground to improve upon.
This works well for planning or making up documentation. Saves a lot of time, with minimal impact to quality, because you're not mindlessly copying or believing the output.
I'm also considering it for assisting me in learning Japanese. Just enough to be able to read in it. We'll see how it does.
I agree that the gestures feel great (pretty much the only good part about this mouse imo), but why not just use a track pad instead?