Hi everyone, I'm sorry to make my first post a critical one. I've read much of the thread and purchased an Herbalizer today. I'm disappointed about a couple of things, and I'm wondering if it's normal. I have searched the thread and found some discussion, but nothing definitive. Also, the Herbalizer support email is bouncing as undeliverable. The first concern is a rattle or rapid popping sound when the unit is heating. Someone else may have described this as an electrical contact sound. It coincides with the bulb flickering on and off. This may be normal, but I think it should be identified in the manual, which is insubstantial for such a high-end device. The second is the fan when the unit is heating. Leaving the bowl in place while raising the temperature blew vapor unexpectedly through the bowl. Again, if this is unavoidable, why not a caution in the manual? I'm also disappointed that a lightly packed bowl doesn't vaporize completely (or evenly) in one big hit at the high temp, 445 F. I liked that feature, touted by the Sublimator, although I've never tried one. I was turned off by the Sublimator's industrial appearance. Anyway, judging by ABV and effect, the highest setting on my Pax seems to produce a higher temperature at the herb without combustion. Finally, the flavor seems fine to me, but unexceptional. Other vaporizers I've used include Pax, MFLB, Eclipse (similar to MFLB) and several DIY vaporizers. About twenty years ago, I made my own version of the BC vape. More recently, I've been using my version of the hot glass vape. It produces high temps and big hits with it's 40W Hakko ceramic element, but the heat is focused in the center of the bowl. If this unit isn't defective, I'll see if I can get used to it or consider selling it. For the price, I expected it to be no-contest compared to what I'm used to. I have the impression that it's very efficienct. Again, sorry to be so negative. I'll try calling the company tomorrow.