Bentonite cat litter is a popular, natural clay-based litter known for its strong clumping, excellent absorbency, and odor control, making cleanup easy by forming solid clumps. While generally affordable, comfortable for cats, and effective, potential drawbacks include high dust levels (releasing silica dust which can be a respiratory concern for humans and pets) and tracking, as well as risks of ingestion causing intestinal blockages, making low-dust or alternative litters sometimes preferable.