The autofire did seem a bit like it could've been a sticky button. I was driving. I just vaped on it and set it down. The lights usually go off after a few seconds but wasn't paying attention. I glanced down maybe 20 seconds later and noticed the lights on and a bit of vapor. Luckily I was around 40 or so watts. The mod stopped firing I picked it up and the wick was toast. I cursed a bit and turned the mod off.
The button has a tactile push, but sometimes I feel I change the W/V by turning the dial while firing. And, hard for me to tell being it's glowing just a single LED indicator for every 30W change. It has happened so rarily (though one of the two mods I own to give me much trouble, KOW) that I am just more cautious using it.
Any known flaws would probably have been addressed in the v2. I'm still sing it since Friday with no plans to put it down this coming week...