J. Lee (3/18/17)
This is a nice starter cube. Its not as good as the MoYu Aosu 4x4 but its really nice and has a smooth but crunchy feel. Corner cutting is probably average for a 4x4, it locks often so not a really great speed cube. I've only had one pop with-in my about 100 solves and it was an internal piece so a pain to put back together. And corner twists are practically none existent. The only way you could get one is if you take out some pieces
J. Kalan (6/1/16)
This puzzle is amazing! Crazy fast out of the box, so much so that I had to slow it down. It corner cuts just as well as you would expect from a good 4x4 these days. Popping can occur if your tensions are too lose and you are too rough for the small inner layer pieces. I've gotten these pops a few times, but found that I can finish my solve with the piece popped out! Overall, replaces my Aosu, and what a great 4x4 for $10
S. Boucké - Site Director (5/15/16)
This is probably the only 4x4 I have ever really needed to slow down. The inner layers are very smooth and still very fast making parity algorithms very nice to execute. The cube is quite light and you can see that the hollow pieces is the major reason for that. Compared to the YuSu and GuanSu there are just minor differences. Because of the multiple piece design there can be stickerless unlike the GuanSu but there is only a pink stickerless option.