The unit performs very well, but you do need to understand how the sensor works. Keep the "cone" of space below the sensor clear of hand movement, except when you need soap!
This rechargeable pump is convenient but i find myself always misplacing the charging cord. It is a special connector at the pump end and if you lose the cord you have no alternative. A standard connector at the pump side such as USB or miniUSB would have been preferable as a standard cable could then be used. Pump works fine, but I do prefer the older style pump where you could more finely adjust the liquid dispensed with the + or - push buttons