I don't know, $200 for a dual 18650 '200w' device is just a bit iffy. I have several Evolv DNA200D powered mods I love. So far the Q-Class looks like the DNA200 for dummies. Seems you'll get most, not all, of the features Escribe offers but easier to access and set up. As, already mentioned, safely and properly getting 200W out of two 18650's is basically impossible, as an electrical engineer I will hold my ground on that claim, doesn't matter what kind of boost/buck system it's using, Steve made a good point in the other Q-Class thread about mod and source power.
My biggest 'wtf' on the mod is this, 0.0005 or 0.00005 or whatever it is lowest readable resistance. Anything below 0.01 would take several hundred watts to fire JUST to get to a dim glowing point, 0.0005 would take several THOUSAND watts to achieve 3-4 volts on. I just don't see it, the DNA200 has put Yihi and Yihi-Powered product manufacturers in a desperate frenzy. The ML class comes out for the.. same.. retail price as the Q class like what, two months ago? I have one, at first it had a ton of problems, had no firmware updates so I sold it. Got another, seems to be MOSTLY sorted out. Heard of plenty of M classes going down the toilet to after a couple of months. Then the SX330 chip has been pimped out and souped up so many times it's not even funny. SX Mini ML Class, IPV5, now.. SX Mini Q Class? 200W with 2 18650's? Gonna fire ubersubohm dead-short resistances with not NEAR enough power to do so? The software looks like it was thrown together in minutes.
I may get one, but the people saying Yihi is some sort of ultimate seal of quality is just not true. I have personally experienced and witnessed SX mods just completely go [edited]. They are nice, but have had problems. So has the DNA, but it's tried and true. This is an overpriced mess of a mod with a LOT of dubious claims as to what it can do. I'll be sitting back for a month or so after release and see that the REAL reviews (not this YO BRO THE MOD SAYS 200W SICK CLOUDS FEELS GUD GIGGITY BABY RiP Trippers [removed] nearly every reviewer seems to follow by), I'm talking about tests, true function comparisons, seeing how it holds up to the DNA200, the DiCodes mods, older SX Chips. This thing is doing what Chinese high wattage mods do best, drumming up a lot of hype. Maybe I'm just an old vape veteran but I remember plenty of SX powered devices that did not do well. The IPV1 and 2 were littered with problems, The M Class was really funky on release, the ML class was dysfunctional on a software level at launch, the IPV4 (Though this was more hardware than software, so maybe not entirely Yihi's fault.) and all that. China powered quality has its limits, and I don't see this mod being capable of, 50% of what it claims. I'm sketched out, and I'll be waiting. Though I'm a high wattage vaper who genuinely uses all the features of the DNA200, the true high 150W+ options it offers, the accuracy of Evolv and DiCodes chips, etc. I've vaped for a while, and a Yihi-powered device has not once been my go-to mod. We'll see. But my prediction is, this is a shiny mod that a bunch of people will drop $150-$200 on then go home, never use half the features and love it because it makes coils produce the CL0UDZ Br0 and the rest will be let down. I could be wrong, but, I know how these things tend to go and from both an experienced vaper's and an electrical engineer's standpoint I just do not see this mod as being worth it or even capable of all it claims.
In total honesty, I see this as being another HOhm Wrecker V2 incident where a mod claims to do all these glorious things then fails miserably at it, pisses a lot of people off and leaves the rest blinded by the cloud of denial that is buyer's remorse. Plus, the DNA200, as much as I LOVE that chip, was littered with bugs and issues at launch. This is a China mod, do people think it will be immune to that? I know this is my first post, I'm not trying to drum up a hate train for Yihi nor am I some Evolv fanboy slave. Just a man expressing his honest opinion and view based on experience in both engineering and vaping, plus I'm a modder myself. Definitely not a chipset programmer, but, you get the idea. I hope it turns out well, if so I'll buy, two or three. I just don't see it right now, especially with only two 18650's and a claim to fire resistances that would take thousands of watts just to get to a reasonable voltage output.