have worked with the "professional version" of Tormek, the main difference is the chassis, which, however, for the sharpening result and handling plays no role. Otherwise, neither when working with the device, nor determine the sharpening result differences. I am a carpenter, and sharpness really everything with the device, of the ax, over caulking and plane irons, through to household scissors (freehand sharpened), pocket and kitchen knives. The sharpening result and are precision it definitely good enough. I would recommend this device for professionals.
