WhateveR - Good to hear. The hardware (including the case), IMO, is not badly designed or which is why nobody yet has made a better atomiser. The battery's automatic switch, can fail, as with any moving part, especially when so small and operated only by breath. There are mic-based automatics now and manual options.
I don't believe the devices are on the whole badly made either. There is a fail rate with all goods no matter where they are made. If you have ever seen how luggage is often thrown around at airports, it is surprising that any remains in working order!
The primary market wants cigarette looking devices and that will remain so as new users come along - and it puts big constraints on the design. Once drop the size straightjacket, it is possible to achieve improvements much more easily and that is all to the good.
In the case of standard batteries, the problem is mostly the delicate automatic switch (the pressure-activated, one not the microphone version). In the case of the atomizer, I don't we know for sure why early failures occur but it is poosibly the soldered connections.
The atomiser design is at the same time both convoluted yet ingenious, and normally works reasonably well. It is after all just a first generation design. I applaud what has been achieved already - but I am thinking everyday how to do better.
Designing the case so it can take different atomizer models and that construction involves no soldring are both really nice innovations.