I have very long hair (about 70 cm long) and so far were curling irons for me nothing. Even though I took a very thin strand, I could not wrap around the entire length of the rod or the last piece has simply got no heat.
The device has exactly the right size for long hair. Angel curls you will hardly achieve (if you have long hair). This is not on the device, but to the gravity.
But Angel curls I would not, but my natural waves give a nice shape and shine - as you often see in pictures of Angelina Jolie. Because with straighteners has indeed shine, the hair hanging but stupid without bounce down.
Vorsitig however one should be with the temperature control. For me, the stage has fully passed niegrigste temperature. At maximum, I would not place the unit. I assume it would be much too hot. The recommendation that you practice the lowest stages, stands in the instructions.