The thing about them is they seem expensive in comparison to other like or similar products, so I have not purchased from them. The aspire cf mod that takes 18650
batteries you can find much more inexpensively than most of their products of similar nature. I guess for me, I always worry about spending twice as much, on something that I don't know whether or not the quality is any better, or if its just paying more for the same thing due to brand name or something.. never sure. Usually, cheap is bad, really expensive is not worth it, but products which are priced in the middle of the two, are usually the best, in both quality and price. So when I see things that have high price tags, I just assume its not usually anything more than paying for a name.