After starting out on a VERY BAD note with this system…(Filled the pod it came with, gave it a few puffs, sat it standing up overnight, woke up to the ENTIRE NEW CARTRIDGE emptied into my brand new device)…I could’ve cried. I looked up how to clean the device, which I did, and ever since then I’ve never had another issue. It must’ve just been that first pod. BUT considering that the system had an entire cartridge drain into it and it’s still going strong with no problems since, I’d say this is a really sturdy vape.