I, too, tried the Kyoseki flat iron and absolutely loved it. It was the only flat iron I had ever used that actually staightened, smoothed and also added a shine to my hair. I live in a very humid climate, South Florida, so this was like gold to me. After about two to three months, it just stopped working. Now, mind you, I only used it maybe one, two times a week, tops, so it wasn't like I was overly using it every day. I called the company and they said they would send me another one for a charge of, I believe it was $20 or something like that. I was fine with that because I was, up until that point, really satisfied with the product.
Well, I received a new flat iron, no problem, but then the company tried to charge the FULL amount on my credit card. So, I had to place another phone call, place a stop payment, etc. After about having this new flat iron for two to three months, again, that stopped working, as well. So, needless to say, I went and bought another flat iron, different brand. I don't know, something just doesn't seem right with this Kyoseki. I, too, thought about calling the Better Business Bureau.
So, for those reasons, I do not recommend anybody purchasing the Kyoseki flat iron.