I worked in the hair industry for a while so I've used a lot of high end flat irons and I got to say, this one did not impress me at all. I'd never used a GHD before this btw (none of the stylists I know have one) but I ended up ordering the GHD classic styler--which btw seems to be the same as the "IV styler"--instead of the CHI Turbo due to the fact that at the time, the GHD was on sale and basically the same price yet it offered more versatility (the turbo has a velvet cover so you can't use it to curl).
I could care less what my flat iron looks like but for those of you who do, this is a nice-looking flat iron, though not much different than a regular Chi in terms of looks. It IS very light-weight though.
This iron claims to heat up in 15 seconds; it also claims to use some bullshit technology that allows it to "self adjust" temperature according to hair type. Well it got warm but it sure as hell didn't heat up enough to seriously straighten or curl my hair in a mere 15 seconds--in fact, I found that it didn't ever straighten my hair enough to satisfy me.
It did get straight and it didn't pull or drag on my hair which was nice, but it took twice as long as it usually does (and lately i've been using a $35 flat iron I got from Amazon!) due to the fact that I had to go over and over it in increasingly smaller sections. I already use thin sections so this was just ridiculous. What annoyed me was that even after all this my hair remained poufy and never really got that shine I usually get. My hair btw, isn't even curly it's more wavy/frizzy/poufy--so I don't require tons of product or anything like that bc straightening my hair has always been an easy no-fuss affair. Usually, it takes like, one pass to get'er done.
I gave it three sticks because my hair did eventually get straight and at no point did I feel like it harmed my hair, but it's not even adjustable because again, the company claims that this iron auto-adjusts according to hair "conductivity" or some bullshit like that (this is a laughable claim). It does have auto-shut off but so do a lot of irons (or at least the high end ones). Honestly, I can only conclude that this is another one of those hyped up beauty products aimed at people who think more $$$= better product and performance but a straightener is a straightener so once you get past the $100 price point it all comes down to personal preference and there's really not much more you're gonna get for your money...