The WuQue is very slow, for me this is a problem. It's also catchy and locky.
The MeiLong is fast. This is nice. It's not catchy or locky, but it really, really needs magnets to shine. Otherwise it's mediocre at best. Magnetizing isn't the easiest, because you have to glue the magnets in fairly close to the edge, but it's doable if you are careful and you use small amounts of glue.
What can I say? I love budget cubes and the MeiLong is fantastic. I personally think this is MoYu's way of testing out new designs before implementing them in their flagships. MeiLong 4 is 59 mm, Aosu WRM is 59. Coincidence? I think not.