Some of the other reviews complain that this isn't a true kilominx because it has colored centers. However, it's actually called a 2x2 megaminx. Sure it looks and acts just like a kilominx, but having those colored centers gives you a different solving experience, more like a megaminx (because the side colors are fixed). I really like this, myself. A unique puzzle instead of just another kilominx.
I found the puzzle fun to solve. As another mentioned, it is pretty loose so sometimes a different side will move and catch while turning. But still great for such a low price. Feels sturdy and looks great.