Hi girls, was thinking of getting a hair curler and maybe a hair straightening iron, any good recommendations of which model/brand to get?

What should I look out for when getting one? I heard that ceramic ones are good? Is that true? Also, I saw some forummers selling some curlers (China brand), very affordable price, are they good? Anyone tried them before? Because I was very tempted to get one myself.

Thanks a lot in advance.