I don't have much to say about the 2x2 other than it works well, and don't take it apart like I did. The 2x2 is pretty hard to put back together.
As for the 3x3, I never thought a cube could turn as easily as this one does. Even when I intentionally misalign a layer by almost 45 degrees, I can still turn a different orientation causing the misaligned layer to snap into place on it's own and still turn smoothly. With how well it cuts corners like that, being somewhat misaligned while quickly turning different sides isn't even noticeable. Unlike on cheaper cubes, where even a little bit of misalignment means it's hard to get other sides to turn.
The 3x3 is a lot easier to put back together after taking apart than the 2x2. Also if you are taking the 3x3 apart, standard disassembly instructions you find online won't work on this cube. You need to pop the cap off the middle pieces and undo the screw in there.
PERFECT CUBE COLLECTION D-FantiX Carbon Fiber 2x2 and 3x3 speed cube set includes the complete 2x2, 3x3 collection with black carbon fiber stickers applied to all sides, which give the cubes a unique look and texture. It strikes a good balance between affordability and performance. Suitable for beginner and professional player. Buy two and save! BENEFITS of SOLVING PUZZLE CUBE There are many benefits in learning how to solve the cube: Improve your concentrations Improve the hand-eye combination Improve the spatial thinking increase IQ level Improve overall cognitive skills Keep the mind sharp in old age FOR ALL AGE D-FantiX Carbon Fiber Speed Cube Bundle (2x2x2 cube, 3x3x3 cube) is the classic color-matching puzzle. Turn and twist the sides of the cube so that each of the six faces only has one color. Suitable for beginner and professional player ABS MATERIAL Eco-friendly ABS plastic, safe and non-toxic. Harmless to human and environment. Wear-resistant and durable GREAT PERFORMANCE Easy Turning and Smooth Play - Improved anti-pop technology and structure for extremely fast and smooth cornering COME TENSIONED & LUBED All the 2x3 3x3 pyraminx speed cube are fully adjustable and provides maximum customizability Come tensioned and lubed already. When you get the cube, it's ready to rock! Description Material: ABS Sticker: Carbon Fiber Dimension: 2x2: 50x50x50mm 3x3: 56x56x56mm What’s in the Box? 1 x D-FantIX Carbon Fiber 2x2 Cube 1 x D-FantIX Carbon Fiber 3x3 Cube 2 x D-FantiX cube stand 2 x Tutorial