Personaly, the concept is fantastic, the exicution blew. I had 2 of them and neither lasted more than 2 days. This is just my opinion, but I find they weren't put together well. The battery attachment that you screwed the atomizer onto was the 1st problem. Poor soldering, bad connections, etc. The next was the poor battery cover connection. It just never seemed to want to screw in correctly and almost always cross
threaded.
Shawn was great with replacing the 1st one (actualy a gift for reviewing it), and I was
thrilled when he sent the 2nd one. Both lasted me maybe 2 days. I still have the second one and tried it again just recntly and the battery connection end came completely unscrewed when an atty was being unscrewed from it. That is when I noticed the positive connection solder was poor and is what was prohibiting the unit from working propperly.
When I get a chance, I am going to attempt to resolder it, screw it back together with the body and use an adhesive to secure it better, and see if that corrects the problem. If it doesn't, no big loss.
It kills me that they weren't better made. They are an incredibly attractive, compact, and powerful
device. Unfortunately, poorly made.
I would love to see an improved & corrected version of this PV.
I hope that helps answer some of your questions.