Turning is smooth, cube is pretty quiet, decent corner cutting. Definitely on par with gan megaminx while being half the price. My biggest gripe would be the lack of adjustability and I’m not a fan of the slick coating. As someone with small hands, it can be hard to hold. Also lube dries up kinda fast on the edge pieces, needs frequent re-lubing.
Overall I’d give it 5/5 for performance, 5/5 for vibrant colours (+ included black pieces), 3.5/5 for grip, 3/5 for lube effects (core was very receptive and lasted a while, edge felt little difference and dried up fast) for a total score of 4.35/5 overall. Good minx, get Dayan instead of gan!