I see zero advantage for this dual-coil trend but to maximize profit by ever increasing features (prices) over products increasingly held in disrepute by the vaping public. While the new coil designs afford a great deal more potential for adept rebuilders the learning curve for users in transition becomes more difficult by orders of magnitude. So this is no entry level product. Nor is it particularly beneficial as a replacement with the same fraying silica and an exaggerated potential for catastrophic and premature failure of the same old hand winds (just more loose turns to go hot on unsuspecting new adopters and the silicone cum n-r wire to mask it).
Maz I've just become callous about the Chinese because it seems blatant at this point. That every new feature seems more to be about mitigating (obscuring) the deficiencies and deterring the rebuilding potential. I'm sure too that video reviewers determined efforts to prove otherwise do little to their balance sheets. We continue to be the guinea pigs for their products as we're most of us elated with the vape we got today encouraged by community and example, no matter how technically plausible.
I endeavor here to say that the horizons of vaping are far more rewarding than what we're being handed. And I hope there are enough of us whose natural curiosity may be enough to rescue those without the means to resist the marketing message.
Good luck to you.