The most honest €13 I have ever spent! For my bob haircut, it is perfect, it creates beautiful curls as if you had done braids, while depending on how thick the strands you grab are, you get a lighter result. It heats up in seconds, has a temperature indicator in degrees Celsius, and you can use it without opening and closing the handle for greater convenience/speed.
It comes with a heat protection glove, a comb, hair ties, and clips, what more can you ask for with €13?
Now, I have no opinion on whether it damages the hair, but at 180 degrees, I had a flawless result without any strange smell. Of course, always with heat protectant first. PERFECT!

It creates a strong and tight curl with a relatively small diameter. It depends on the size of the section, the smaller it is, the tighter the curl. Therefore, the result depends on each person's patience.