OK, I think I'm starting to make some progress with this thing.
So far, I've been a little disappointed in the flavor I was getting. The first hit is always super tasty and clean, but for many of my hits, often quite early in the life of a bowl, the flower was taking on a toasted, overcooked taste similar to what I typically get from a MFLB. Since I wasn't holding the button down for that long (5-10 seconds per pull), I wasn't sure what the problem was.
For this most recent bowl, I tried pulling faster and also "vapor surfing" as Firefly calls it. For each hit, I pulled moderately fast and only held the button down for around 3 seconds, followed by a few seconds of inhaling without pressing the button, then 3 more seconds of button pushing, etc. This has allowed me to keep the temperature down and preserve the tasty flavor for longer. I just got 5 or 6 hits with smooth, light vapor and very good flavor. At this point, the vapor is starting to thin out big time, so I'll probably have to extend the duration of my button pressing for the remainder of the bowl.
That can wait until later. The handful of hits I took has me lit.
Also, the ABV looks good right now. Lightly browned and evenly roasted. It seems like the heating element gets up to 400F rather quickly, so you need to be conservative with the button if you want to enjoy low temp vapor. At least that's the case with my unit.
My biggest gripe so far is the heater button. It feels cheap and it's way too finicky. You would think a premium priced product like this one would have a better quality button, especially when it's absolutely essential to the operation of the device. You have to press it just right for it to click correctly. It's pretty annoying to be honest. They need to fix that.
EDIT: I took a bunch more hits with longer button pushes and harder pulls. I was pleased with the resulting ABV.
The way I've been using it, only the top third of the unit ever gets too hot to hold and that's after an extended session. However, I leaned on the button repeatedly for an extended period (no material loaded) and this thing is capable of getting extremely hot. Are people really taking hits while holding the button down for 20-30 seconds at a time? I mean, the mouthpiece never got hot enough to burn my lips, but the rest of the unit was pretty damn hot. Fortunately, it cools down pretty quickly.