Product review (5 stars): Excelent and safe
In my country this kind of switch is almost unknown, even most of the kitchens have a wall mounted switch for the waste disposer, the Scrappy makes easier to do the job since you don't have to wet and stain the wall with your hands covered not only by water but greasse and food so you have to clean the walls after doing your job in the kitchen.
On the other side, it does what it is supposed to be made for,  saving you form the unpleasant and potentialy mortal experience of a 110v electric shower.
William (Colombia)