The whole reason I got into rebuilding is that the coils back then didn't have the ability to produce decent vapor, at least the way I wanted it and the mass produced ones muted flavor at best, or tasted like shit at worst. There is the economics with wrapping your own coils, a 250" spool of SS316L is cheaper than packs of most subtank coils. It remains to be seen what the price point is on this type of coil. You know it will be priced at what the market will bear, close to the cost of replacement heads for subtanks.
I'll reserve my views when it his the market and gets tested. Hopefully it won't be anything like Vaping Donuts.