To achieve straight, sleek locks: Mist hair with GHD Heat Protect Spray (sold separately) and place a fine section of dry hair between the plates of your GHD Professional Styler. Ensure that the styler is as close to the root as possible before closing the plates. Gently move toward the tip of the section in one simple gliding motion. Repeat the process with each section of hair, gliding once from roots to ends.
I love my ghd hair straightener and use it several times per week. It heats up quite quickly (in the region of 20-30 seconds) and heats to the perfect temperature for my hair. It's nice and light and feels comfortable to use. I find it less damaging to my hair than other cheaper straighteners, but find that it's definitely worth investing in some argan oil or other heat-protective product. Ghd straighteners are on the expensive end, but I think it's worth spending the extra money to buy a product that does a good job.
GHD used to be amazing however now the products are cheaply made. I have had many over the years and now done with them. Every single one of my straighteners just stopped working one day. (conveniently just after the warranty). Unfortunately won't be re-purchasing a GHD unless quality changes. Customer Service also not the same, no longer interested in helping.
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.