We've been using our "Magical Vestibule of Awesomeness," a.k.a. CatGenie for exactly two years and let me just say, it's the BEST investment we've ever made. Granted, it was hard swallowing the cost of this thing, but let me assure you, we've NEVER once regretted our decision to buy it, not even a little.
Can I tell you how nice it is to NOT have to deal with cleaning a litter box anymore? (!!!) Clumping clay cat litter smeared all over the floor, running out to get kitty litter every month, washing out the box, you get the point. It was a horrible daunting task that we all avoided like the plague. I do not miss one second of the dark ages (life before the magical CatGenie came to live with us).
This thing scoops, cleans, sanitizes, and blow dries the litter all while I don't have to touch it! Seriously, GOD bless America. I am so grateful to have this in my life and my cats are, too.
The only complaint I have about the CatGenie is that when the sensor needs cleaning, the smell can be quite foul, but running another cycle after cleaning the sensor usually does the trick. Regardless, I would much rather deal with 20 minutes of sensor foulness than deal with 5 minutes of clay cat litter again.
I also suggest getting this package or at least one that offers the dome. Otherwise, the plastic litter will end up everywhere. Especially if you have cats like mine, who use the most dramatic of motions to cover their waste, which ultimately results in plastic granules of torture all over the floor.
You WILL NOT regret purchasing this unit, I promise!