I have had 2 of these for about a week now  it is a game changer. I have 4 large cats so finding an automatic litter box that was comfortable for my large Bengal cats to use has been a bit crazy. My Bengals use these boxes with no issue  took to them right away. Pleasantly surprised by easy instructions bc I am usually horrible with this stuff. Very easy to get started. Very easy to useempty when needed. The price point was also amazing compared with similar models! I would give this product more stars if I could! Definitely a must have for a multi cat household!