It's almost been 2 months of having my TM and using it about 6 days a week, every week. I've mostly been using it on-demand, starting around 3 and ending on 9, sometimes going straight to 8 or 9 and trying to kill the bowl in one or two hits. I cough like crazy, but I cough from every vape. Lately, been using session mode a lot more, just for ease of a few back-to-back hits on my waterpieces.
I haven't had any issues with it, cleaning the various tubes I'm using with it has been super simple, and I've dropped it twice onto hardwood floors from about 4 feet with no perceptible damage or impact (pun intended) to function. Mine has a very noticeable buzz which, when using on-demand mode, wavers a tiny bit right as it reaches temp, so should haptic feedback die out there's that way of realizing when it is ready.
I've done a few tests with session mode, cranking it to 9, turning it on and just leaving it in my bong. It never seems to toast the herb in there when there is no airflow, which I think is evidence enough that this is indeed pure convection (not that I doubted it, but neat to see nonetheless). I've had it power down when I've left it like that, with 2 or 3 buzzes left on the battery power check upon turning it on, but I thought it stayed on in session mode until turned off?