All the pluses of the mouse kill the disgusting sensation of owning something smeared with glue with clinging edges of nasty rubber bands. Different pros: Convenient for a large hand, beautiful, the ability to choose the optimal weight due to the weights included in the kit in a convenient case (maybe someone likes it heavier) Different cons: About a year later, all the rubber pads began to "float" and peel off. At the same time, due to the protruding glue, the side buttons get stuck (the glue sticks out from under the rubber pad and gets into the slot of the buttons). The third side button is not at all clear for what purpose, because it is not possible to reach it big.