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.
For curling, place a section of hair between the plates closest to the scalp, clamp the plates, and turn styler through 180 degrees while holding the end of the strand. Pull styler through the hair slowly, always maintaining the 180 degree turn--it helps to slightly tip the nose of the styler downward, careful not to let the hair fall out. It also helps to pull the strand forward when trying to curl hair at the back of the head.
Featuring advanced ceramic heat technology, the ghd Gold Professional Performance 2" Styler is designed to operate at the optimum 365°F styling temperature for healthy-looking hair with enhanced, lustrous shine. Styling thicker, longer hair is quicker and easier thanks to the larger plates that glide through strands without snagging for fast, effortless styling and flawlessly polished strands. It heats up in as little as 30 seconds to tame frizz and transform coarse textures into sleek, smooth styles that last. The styler has contoured, round edges to unleash undulating waves, and with its styling versatility, you can change your look every day.