Absolutely loving the Fierce. Came from a Firefly2 that was awful to use, clean, had terrible battery life, stupid app, etc. For microdosing meds, the Fierce works great, simply turn it off after a short 7 second draw, and pull the glass piece out to reuse again a few more times. Only using with the glass mouthpiece, and will order another curved for best flavor and for easy swapping between daytime and nighttime meds. Makes cleaning incredibly easy and simple, just like the Airizers. Love the long battery life (over a week of microdosing here!) and USB C charging! No need for extra chargers now, phone, laptop, vape, all charge with same USB C!
The only improvements I would like to see would be a better carrying solution when using the glass pieces. I have no desire to dirty the oven by not using the glass pieces, so having a silicone top that fits over the glass while retaining the easy of cleaning of the glass pieces would be ideal. The other possible improvement would be a quicker heat up time. It's about 40sec to 375, which certainly isn't bad, but is still a long ways from an on demand like the Firefly2, which was pretty much the ONLY positive thing about it. But I'll take the tremendous battery life of the Fierce any day of the week.
That's it! Still easily 5 stars, for our purposes. Was looking at the Arizer Solo 2, but figured this unit would be easier to live with from a form factor, USB C, and user replaceable battery.