I still prefer my aosu gts2m because it feels smoother than this puzzle, but that might be just because I've used it a lot. Maybe the aosu wrm will get nicer after I've used it for a while. Time will tell. I like the smaller size but it isn't much of a factor for me. It's fast and stable but it just feels slightly locky right now.

The cube was slow. When you loosened it, the middle layers rattled a lot.

I really liked this cube in store, it tried a bunch of the 4x4s before I came to a decision. It was one of the faster cubes I tried least but was also very stable. The middle layers have stronger magnets making m slices that much easier. The outers are weaker magnets and I'm able to do my turns faster. Its an upgrade from my previous 4x4 but worth the investment. Its smaller size works better with my turning style.

For comparison I also have the relatively new Yuxin Little Magic 4x4. The WRM has stronger magnets, I think that they are a great strength for a 4x4 cube. The little magic was a bit weak for my liking. It cuts pretty well up until about 40 degrees, and reverse I get to a little past half of the corner piece, although I have it pretty loose and I feel like that does not help. This is actually quite comparable to the little magic which has better reverse cutting but not as great normal cutting. The smaller size is amazing to work with in 3x3 stage, and doesn't hinder me in the yau stage (I have quite long but skinny fingers). The feeling is very fast and crispy, I slowed it down a bit with weight 5. Very amazing 4x4, although I am not sure if it is worth the nearly $50 premium over the little magic, as that is an amazing cube at a very generous price.