Functional and aesthetic value! Some pros: Careful manufacturing and aesthetics of the product, compactness and power of the motor, grip (according to my hand), non-slip handle material, two speeds, the ability to adjust the moment of force on the shaft, equipment, the presence of a cover. Has some cons: Working conditions m. B. different: I would provide protection for the charging port from contamination with dust, dirt, shavings in the form of some kind of silicone cap or plug. (but you can stick it with duct tape)