Not that this merits discussion, but...
Best I can tell, looking at the website, there is only a single slide. So the whole "double independent or single trigger" choice isn't really a choice. Firing only one barrel would either: work the action, thereby ejecting a perfectly good unspent round, or; cause a malfunction due to lack of sufficient pressure to operate the slide.
Honestly, it's not even something I'd think was cool if I'd been drinking heavily. If I saw someone with one of these at the range, my only impulse would be to laugh. I'd probably shoot it if I had the opportunity, but mainly so I could have a good "So you won't believe what I did today..." story to tell later.
I give it 3 months before it shows up in an action movie with a big-name star. And it will be the focal point of the poster.