Okay, doing first bowl as I speak. Started it on 5/5 temp and kept it there for two cycles.
Awesome amount of heat, equivalent to Solo for sure. I allowed the unit to heatsoak for ~10 mins like the instruction manual encourages. Without letting it cool down, I loaded a half bowl. Excellent clouds right away, the thing motherfucking rips. The stem is almost too hot to remove, a problem I never had with Solo. (edit: nvm, found easy workaround. You just have to grab the glass as close to the mouthpiece end as possible. If they used the heat tape from the Extreme cyclone bowl, this would be a non-issue.)
So yeah, best vape I've ever used. It is debadged and stealthy as any vape I've seen. It is way smaller than I thought. The fit with the stem on mine is PERFECT. Not too tight, not too loose. When you go to insert the stem into the heating chamber, allow the glass to just make contact for a moment to heat up. You can then gently push and barely turn the stem to glide it into the heating chamber. My old M107 had a fit like this, just utterly perfect. Not too tight, but tight enough to support weight of unit if I were to try.
Only a couple minor negatives:
For me, the mouthpiece will probably have to go. The mouthpiece is great for noobies because it is like a speed limiter on a car. You cannot go too fast which will cause the heater to be overwhelmed and cooled down. I am a control freak and want complete control of my draw rate. I also use the vacuum method after stirring the bowl, which isn't possible with the restrictive mouthpiece. This method of course allows you to instantly and evenly load your bowl in 2 seconds by just sucking through the stem super hard. All in all though, for most people and especially those new to vaping, the mouthpiece is fine and actually a good thing. I love how it is threaded on with vial threads. The stir tool fits perfectly in the mouthpiece hole, cleaning it in one poke. Expect many different style mouthpieces; i.e. ones with no restrictior, ones with bigger holes, ones with multiple holes, ...
I am still getting a lot of herb passing through the 4 holes just like my Solos. I am using a 1.75" mendo vape grinder and I always stir my bowls once which pulverizes the herb for full extraction. The new Air stem and it's mouthpiece will catch most of the loose particles, unlike the Solo. PV "Turbo" style bowl (one big opening vs. 4 holes) with a screen is still the best possible setup, giving you complete control and less loose particles in stem. If you stir, you will want the screen. If not, you are fine.
The entire exterior of unit appears to be aluminum, except maybe the top of the unit near the heating element which appears to be a glossy finish. I hope it isn't plastic. Mine had microscratches in it, only noticeable if you zoom in using computer, hardly visible to human eye.
Cliffnotes: New daily driver. This vaporizer is as efficient as any vaporizer I've used. It gets herb darker than a HI on stock wall charger in less time. Heater seems to be just as effective as a Solo. This is the main test I wanted it to pass and it does with flying colors.