After reading some of the other reviews, I have not had any problems with this system and as when my hands are greasy, the soap automatically comes out. If you are not aware of how close you are to the soap, you will potentially trigger the signal to dispense soap, but you just have to be careful. I put the soap in the back corner of my sink counter area, so when I wash the dishes, the soap does not come out. I have also learned to grasp the base of the back (while arching my wrist) and this helps to prevent the soap from being dispensed.
It was easy to put together. The system comes with batteries and there is a piece of plastic that needs to be removed. Soap filler also has plastic to be removed. I put the soap in the base and after two tries, everything worked.