We just adopted an adult cat from a shelter and this is our first time using anything but a standard litter box. I was amazed at how easy it was to get the cat to use. We have it set on manual cleanings right now. However, even though our cat is older and he saw it running the second day he was home. He continues to use it faithfully. My only issue is that there are often remnants in the litter or stuck to the scoop after cleaning. I'm waiting to see if this dissipates through use after we set it on cat activation mode.