I just got my IQ3, it is very sturdy and heats up quickly. I have one problem trying to use dosing capsules and it doesn’t seem like the over gets hot enough to produce clouds?? I don’t know if there is a leaning curve with IQ3 and capsules, right now I’m at 220 C and not producing clouds I can taste the terps and the unit itself gets very warm to the touch. I will continue to work with this and capsules and maybe a break in period I don’t know. Overall the unit does look like a solid vape 💨 and get decent clouds without the capsules. I still find myself reaching for my Venty with capsules!!