Over the four years and three months since I began vaping, I've purchased 193 PVs---eGos, bottom-feeders, handmade box mods, tube mods, Twists/Spinners, VVs, VWs, mechanicals. No, I haven't purchased everything in the marketplace, but I've owned and used more of what's available than many (most?) vapers.
Of those 193 PVs, I've given away about 25, retired another 25, and had 25 more fail. Some gave up the ghost early on, others after a year or two of use. About 15 of the failures were "invisible." The unit simply broke one way or another, stopped working, and went quietly to its grave. The other 10, however, failed in more dramatic or even spectacular fashion, usually due to a short inside the PV. None of those exploded, but most got hot and burned in some fashion. I am now familiar with the smell of melting plastic cases and internal chip/boards. A couple of these were clearly my fault, caused by mistakes such as a shorted atty coil or inserting a battery in backwards. The others were caused by something going wrong inside the PV itself. I've also had a battery catch fire and vent in a faulty dedicated charger. Luckily, I was ten feet away when that happened.
What I'm saying is that this is the state of affairs in the vaping industry.
I'm sure that many vapers have never encountered a problem with their hardware. I'm equally certain that a meaningful percentage of vapers would report experiences similar to mine, although perhaps not as many. I've come to accept that the devices we use to power our vaping are not infallible, and probably not to be trusted.
Yes, my American-made ProVari and Buzz Pro are still going strong after almost three years, but then so is the very first PV I ever bought---a 650mAh eGo Riva battery from China. Of the failed units, there's no apparent correspondence with price. I've had expensive PVs go belly up as often as cheap ones. The same applies to country of manufacture. American? Chinese? The failures are seemingly random in terms of national origin.
So far, my Cloupor Mini has been nearly flawless. Yeah, I had to fix the clicking battery door, but otherwise it's been perfect. Do I trust it? Not on your life, especially given the recent reports. It did pass the 15-second cutoff test, however, so that has given me some reassurance, although I still turn it off before going to bed. Nothing surprises me, though. My first iStick 30W had an overheating malfunction and had to be sent back for exchange.
I try to use care and common sense and not abuse my PVs. I expect failures, however, and am not shocked if/when one occurs. As I say, that's the state of affairs in this young industry, and I love vaping so much that I'm willing to take the risk.