I have to admit the thought of dropping [$$] on a LITTER BOX was a scary prospect!  But, as I am sharing my one-bedroom apartment with two kitties, I was desperate for a solution to the inevitable odor problem.  As I work full-time outside the home, it seems the box is never as fresh as I'd like, and there is no place to "hide" it - like a lot of homeowners who keep the litter box in the basement, or some such out-of-the-way location.