I haven't used a Disrupter, but I have an iStick 50w - which I bought after the first batch had several "flaws"...okay 1 flaw, they were exploding. But I got mine about 6 months ago and it has held up fine, works well and is my go to mod when I leave the house. If I drop it or it breaks it's no big deal it was $35. Battery life is great, especially for the SubTanks, which I normally run between 15-25w. Dripping on it uses up a lot more battery if you use it at 50w the whole time. That's my experience with it, I think it's a great little device for the $$ plus it fits great in my hand vs my IPV3 Li.