So far the product works great. We have seriously reduced the amount of odor in the house, and the cats love it. Seriously, i dont think theyve even used any of their old ones! Its a cool design and seems to handle our three cats well. The only "problem" we have with it, and the reason for the loss of a star, was we ordered the grey one but got the white one. After waiting as long as wel did for it, it wasnt worth it to send it back for something like color. That being said, I think a little mor...