Dude, trust me, go with the stickerless. I've watched every single YouTube review of the WuQue and I've noticed that 99% of the stickerless reviews are screaming its praise. The other 1% is impressed, but underwhelmed. I noticed that about 60% of the black reviews are blown away, with the other 30% of reviews notice that the cube is a little sluggish and underwhelming. I haven't tried the black WuQue but I just have my EXTENSIVE online research.
Also, Mats Valk uses the stickerless WuQue. He has also switched to the stickerless Valk. Plus, the inside pieces are all different colors. Mine are yellow! I've seen green, blue, red, orange, and white, too.