Love it… I have very long hair, and it gives long lasting curls.
cons - it’s heavy to hold, takes ages to do as I have very thick hair and it can only take small sections at a time (takes approx an hour for me to do properly so I only use it for special occasions not everyday styling)
i bought mine 2nd hand for about £30 - hardly used, they are not for everyone. But I am not good at styling my own hair, and can’t use straighteners to get curls.
Those saying it tangles long, thick hair is because they were putting too much hair in at one time (probably being impatient? Because it is not quick to use)