Wandering the internet I have found multiple reviews saying that the Eleaf iStick 100W had a rattle sound. I have had the iStick 100w for over a month now and I have to say YES, it does rattle: If I hold it up next to my ears and shake the hell out of it. Reviewers have said the same about the Snow Wolf 200W. So, I want a basic VV/VW (Variable Voltage/Variable Wattage) box mod and I have a choice; spend $40.00 on an iStick 100W or $80.00 on the Snow Wolf 200W. Hmm, were would you spend your money?