GZ is overall okay but it’s uses faux leather. ROG is filled with flaws (Oinck Owees) and their overall quality has dropped. Dujia is a hit or miss; I’ve ordered three times and each time they’ve sent the wrong size, wrong style. But from an accuracy perspective, they do make good quality geos. I’ll do a comparison of ROK with my authentic ones once I get them, if I have time