It seems to have just one purpose, and that is to keep you from being killed. Two shots at very close range to get you out of a jam.
No fun at the range either. I reckon you would have to test fire it to see if it works, and that's about it. I would guess after firing those two test shots, most people would load it up and never fire it again.
It may be a good thing for its designated purpose. The thing is, would someone toss out a bunch of money for a gun that will most likely be shot only twice?
I just noticed the MSRP at the bottom of their advertisement page. $500- $800. They are not giving them away! As said above, if they were dirt cheap, I would consider one, but mostly as a novelty item. At the prices they will be asking, I would pass. (The idea of porting the barrel for a quick follow up shot, cracks me up!

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Why would anyone choose to carry one of those when there are so many better choices out there for concealed carry? There are roughly a bazillion better choices for home defense.
WG840