While there was and quite possibly is still some junk being sold on the market the current generation of Joytech (read inexpensive) does actually quite well as does the other high end chip sets. But then again they need to be operated properly.
I just watched a Pbusardo video on the DNA75/YiHi350J2 where he blindly set the SXminiML to maximum joules in TC mode "because he likes to vape that way" then complained about the rattle snaking.
Given that it takes a mere fraction of a second to fill my mouth up with vapor vs 3-5 seconds to fill my lung, I'd think D2L vapor's would be MUCH more exposed to pulsing and rattle snaking then M2L vapor's ever would be.
At the end of the day, all the other chip set OEM's products will fire and regulate a wider range of builds in TC/VW mode then the DNA75. The YiHi's don't have the stupid 'kick out of TC mode' feature that the DNA's have. (only the Joytech's share that stupid feature with DNA's)
Actually, I rate the Presa100 over the YiHi, Dicodes and DNA75 for ease of use and flexibility.