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.
This is an expensive straightener, but it's worth every penny! I've had mine now for over a year, and I know I'll have it for many years to come. The iron itself is black and gold. I have long, thick, straight hair, but it gets a little wavy underneath if I let it air dry. If I blow dry it, it gets a little poofy and I use this to give it a more smooth, sleek look. It takes a couple passes of going over my hair before it's completely straight, but with cheaper ones it takes longer. It doesn't take too long to do all of my hair. It heats up super fast, and if I'm in a hurry and forget to turn it off, it turns off by itself after thirty minutes. I have dropped it a few times, and it's still going strong. I recommend this for everyone.
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.