While the litter pan came well packed, it had to be fully assembled with many pieces of to be put together and this took considerable time. My senior cat with arthritis was unable to go into the pan due to how high it sits above the ground. My younger cat likes the pan and got use to it quickly. It is quiet to operate, but I found the unit to be cumbersome but worth accommodating because the benefits outweigh this aspect of the product. As someone who already scoops the litter multiple times a day, it is helpful to have that done while I am away from home and unable to do it myself.