I live in an upstairs apartment and although I liked my Litter Robot, I did not like hauling the litter to the dumpster or hauling buckets of it up the stairs (I have a really bad back). I had the Robot for 7 years and it was wonderful until a couple years ago when the rubber at the bottom started absorbing urine odor. No matter how I cleaned the inside, the urine smell permeated the bathroom where I kept it. The CatGenie will never have this problem because its made of hard plastic that doesn't absorb the odors or urine and it can be completely cleaned whereas the Robot could not due to the electronics on the bottom. I really don't like having to purchase products on an ongoing basis for the Genie, but sometimes things are a trade-off.