Pro level mics have a lot to say about their audio quality: Why it's good, why it's innovative, etc.
This TP-7 doesn't. Not at all. Their marketing is heavily based on how cool it looks, with very little if any stuff like audio samples, frequency response, etc.
In other words, their marketing materials say "it's good, because it looks good"...
Teenage Engineering make shiny expensive toys, and market an 'experience'. Which is fine, if that's what you're after. But if you're after quality recording, get something twice as good and ten times cheaper.