I have an STX that I’ve been wearing.
Never notice it for the most part, but the Sena will hit it on the left side occasionally when I’m using the helmet that has it. It’s a minor issue that isn’t too big of a deal.
It works with all my riding jackets.
There is a different model that interfaces with my Leatt 5.5 body protector. I haven’t been wearing the 5.5 much, but now that I have the 350 I might – so I may get another brace that works with that one better.