Yeah, I've got one. It's one of my favs, for the looks, mostly. I love the marbled finish. It's not bad. It's got a fairly easy draw, and produces a decent amount of smoke, although not nearly as much as Meltrix's 901. It's pretty consistantly reliable, and doesn't usually need priming. Battery and cartridge life are as expected for a 901 mini. It's a tiny bit lighter and slimmer than other 901 minis. And, I was VERY impressed with their box. It comes in a real wooden cigar box, not one of the usual cardboard ones.
BUt I have had battery problems, and I've had problems with their exchange process.
Only one of the three
batteries it came with worked at all. I contacted them through their websites contact form, and it took a couple of days to get a reply. (Their e-mail replies have all been in german, but they just give a link to the actual response on their website, which has been in english.) When they replied, they sent out the replacements promptly, but asked me to return the bad ones on my own. No prepaid envelope. And no answer when I asked if they would re-imburse the shipping. 8-o
I got the replacements, but one didn't work at all, and the other worked, but I had to suck twice as hard on it as the good one. So I again asked for replacements. But this time they replied that they tested them before sending them out, and I would have to send the bad ones in for testing before they would replace them.
I again asked them about whether they would re-imburse the shipping, but they didn't answer.

I haven't gotten around to pursuing it further, and I'm not going to ship the bad
batteries back to Europe on my own dime.
So, if you get a working set, or are in Europe, so shipping returns is no problem, you'll be OK. But If you're in the US, well, just hope all your
batteries work.