Otherwise it's a good product, that allows a very good result in a few minutes. It heats quickly and requires little time to do throughout the hair. In this regard, it is quite clear that it is designed for long hair, hence the quite big brush diameter. After that, everything will depend on your cut: on mine, it was perfect!
It does not burn (at least I have not had misadventures on that side, so it sometimes with my curling iron). The ability to retract the pins to disengage the lock is convenient and allows to preserve the formatting. The notice indicates to apply a styling product before and after: I urge you to follow this advice, the risk of seeing your work rapidly fade.
I tested on a square plunge, and brush allowed me to make a real swelling on the neck, like the hairdresser so I'm thrilled! It remains to improve my technique for the front strands. I think it will come with practice.
In conclusion, a good product but requires a little know-how before to match the performance of your hairdresser;)