No injury to any part of the body to assemble the dispenser. Easy to operate, just slide the 5 gallon water bottle from the bottom load and put the switch on, get ready to be served within few minutes. Good for all ages except the minors, to put the dispenser in place. It is quiet, three form of partition thus three form of water for drink. Hot, cold and room temperature. Hassle free to dispense and hassle free to dispense. Appearance is so adorable that the area where ever it is installed looks perfect. Great Human Friendly Dispenser,.