I had the chance to shoot an AR 9mm with a binary trigger last week and I have been processing the acquired knowledge since then.
Conclusion: I don’t see the advantage.
Once you get used to the fact that a shot will go off after you release the trigger, you tend to giggle a bit and start to operate it fast. To me the result was that the second shot probably landed 2 blocks away from the first one. So, I started to slow down trying to keep the muzzle controlled while teaching my finger (and brain) to make sure the release shot was coming. I eventually managed to get both shots on target, but it was slow as, if not more than regular double tapping.
I am sure that with enough practice, I might learn to operate this particular apparatus, but truly what’s the point? I believe that you are better off remain old school trigger which is about the same time performance for me, or invest money, time and paperwork and go for a full auto gun.
Again, this is my experience and opinion. You are free to have your own different one.