Do not waste your money on the Diaper Genie. Even the "new and improved" Diaper Genie can't compare to the Diaper Champ. The Diaper Champ uses regular size trash bags where the Diaper Genie requires special refills. I can't speak for anyone else, but personally, the idea of having to constantly buy expensive refills for my diaper pail, when we already have trash bags in the house, is nuts.As for the "smell" issue. Let's face it - diapers stink. And regardless of brand, ANY diaper pail still needs to be emptied on a regular basis. As for the Diaper Genie vs the Diaper Champ, I have seen no difference in odor control between the two brands - both work pretty well to contain and control odor better than a regular trash barrel, but neither are odor proof.