I don't disagree with anything you say. There is something really, really nice about the combination of a nice Kayfun on a Prothingy.
But I just switched from that combo to an Eleaf GS tank on my Cool Fire 4, and that's nice too. Very nice and easy. Effortless. Crack a blister pack open, fill 'er up and off you go. Push one button and you see your volts, watts, resistance and battery status; 2600mAh battery. Doesn't purr, but a pretty nice vape nonetheless. My Aspire BVC coils are really lovely in my Subtank mini, too. Better than the Kanger coils, methinks.
It's all good. vaping has come a long way since our 180mAh cigalikes and burning cartomizers. And it's a good thing. There's a perfect setup for everyone. The trick is to find it.![]()
And I VERY much love my CF4, too, with almost any tank on it! It's all about moods for me.*
*moods = full tank, full batt, blah blah blah.

I'm ALWAYS happy to pop open a blister pack and drop in a coil!!!!!!!!!!!!!!!!! Makes me happy and takes very little time.