A HeShu Super Big 3×3 will give you a new challenge just in the size of the cube. Holding the cube with one hand and performing moves with the other is not the easiest, but something you will master with a bit of practice. However, it will be easier and less tiring for you if you have access to a table with a mat to rest on the cube on between the moves.
The cube can be adjusted just like a regular 3×3 cube with a normal screwdriver. The screws are found under the plastic cap that covers each center piece. The cube comes with a small manual with tips and tricks on how to solve the cube.