I received a complimentary product ScoopFree Complete Smart Self-Cleaning Litter Box from Influenster, for testing purposes only. I like this self cleaning litter box. This product is effective and hold up to its reviews. I am not sure about noise level. I took off two stars. One star for not having a cover and not being completely enclosed like her previous litter box. Another star because the replacement litter trays are super expensive and should be more reasonable. If you have extra, try this product and see if it works for you. Give it a chance.