My buddy has one. He's the one walking out of the frame in this video. This is the very first shot fired out of it that day. It was a bunch of co-workers who gathered at someone's cabin. They all took turns shooting it.
It shows the video as private. If he set it to "unlisted" people who you share the link with can view it. Gun stuff on YT is funny, maybe he doesn't want others to view it and I can't say I'd blame him.
The over-pressure is very noticeable. Feels like someone punching you in the chest. The felt recoil is surprisingly low. Less than 3" 12ga slugs.