The Moyu Meilong 6x6 V2 M is a release that I certainly didn't see coming, but it's a very welcome surprise. The 6x6 outer layers are really fast out of the box, and you can really feel the magnets in the rest of the layers. The size of the cube, even it it may look small at first, is very comfortable to hold and your hands won't get tired from a solve in it, although some pieces may get stuck while trying to move a single middle layer.
If you need to buy a budget 6x6 and you don't mind the size, this will be your better option to buy over the YJ YuShi V2 M