I had owned a LitterMaid Litterbox for many years in the past. Since it worked consistently every day for more than 6 years, day in and day out. and gave me "yeoman's duty," to use a Navy expression, I knew that when the motor finally gave out, that I would purchase a newer, improved model of this product. There was never any question about it. I was so tempted to buy one of the Elite series of this product but after reading other customer reviews on this website and others, I decided against it, and boy, am I thankful that I did. I (and my kitties) are so very pleased with this product since it has four great new features: (1) The sides of the litter box are higher so I don't have to constantly sweep out the litter that falls over the side.
(2) Also, I noticed that the litter box motor on this model is so much quieter than the previous model which is a blessing since I placed it in the master bathroom.
(3) I am able to put 50% more kitty litter into the litter box.
(4) It has the dual power option. It can run on regular household current or 8, D batteries (not included) if the power fails in an emergency. This particular model, the 980, is specifically designed for use by Multi-Cat households with cats over 15 pounds like my "Big Boy" Tomcat! Just have to caution you that since it is a new item, the kitties may take a few days to become comfortable with it. The old litter box had such a familiar odor. Even though it has a one year Limited Warranty, you should have many years of satisfied use out of this product! If you purchase this litter box, I don't think that you will ever regret it! A very good value for the money!