Okay so I've had some time to inspect the allegedly counterfeit unit with the one from puff it up, and I've come to the conclusion that it is indeed an impostor. Many things do not add up.
First, the packaging: the black unit (the fake one) came in a package that had holes and was generally pretty beat up. The box it came in also was different, with a different layout on the back. But whatever, this wasn't much to condemn the the whole unit on.
Now I inspected the actual unit, first thing I noticed was that there wasn't a plastic cover over the serial numbers on the bottom of the battery cap like the real one had. While I'm covering the bottom of the unit I'll testify that the bottom cap felt cheaper and did not screw on as smooth as my Titanium one. Moreover, the craft work for the electronics inside the bottom cap for the battery was noticeably dirtier and not as well put together, like at all. The battery is different too, a Samsung one.
Also, there was not a small sticker between where the ridges of the plastic cover and the body of the vaporizer. It's a small white sticker, only 4 characters long, two on top, two on bottom.
Now I compared the machining of the plastic cover around the top of the unit. Sloppy job. I saw that there are threads of plastic sticking out, and there was even a screw showing. It's just not as well put together as my Titanium one.
I compared the small plastic cover for the herb chamber, and my PIU one was noticeably firmer, the other was flimsier.
I didn't have time to compare the size of the airholes, but I'll check it out later.
Even the stems felt different, however I'm not 100 percent sure about it.
Regardless, I came to the conclusion that the unit is a fake. I haven't used it at all. Merely inspected it and compared it to my titanium unit.
I feel cheated, and I'm about to let that eBay seller know.
And yes, my real unit is amazing, I fucking love it. It's perfect. Great job from Arizer, I wasn't disappointed with my Solo when I first got it, and I'm feeling even better about this one.
Happy vaping, my friends.