For the first week, I loved it.  Then the rake assembly began to have multiple problems.  It has spontaneously fallen off at least 4 times.  Now, no matter how perfect the litter is, it can't seem to rake the box at all, even after one use.  I have 4 cats using it, so that may have contributed to it's problems.  However, I cannot recommend this item at all.  I feel like I completely wasted my money on it.