Dual-Zone Technology: You will have heard of Tri-Zone Technology if you own a ghd Platinum Styler, so think of Dual-Zone Technology as its little sister. Instead of three heated regions, this styler features two, one towards the tip of the styler and another closer to the base. This essentially means the straightener has better control over the way it heats your hair, instead of over-delivering in one area and lacking in another. Think quicker styling and a more uniform look in terms of sleekness and smoothness.
For me, the first and still very best of all ceramic stylers [and my dad is a hairdresser too]. It heats up fast, cools down relatively fast, works wonderfully and lasts a long time. In 11 years, I've bought two such stylers. The first one eventually died after 6 years of daily use, rarely skipping a day, while my second one is still going strong. I have no reason to recommend any other styler but this one. My hair is long and very fine.