Pros: No special bags required, Easy to use, perfect for use before solids
Cons: Bulkier than other versions, does not perfectly contain odors after starting solids
I chose the Diaper Champ over the Diaper Genie primarily because it doesn't require the purchase of special bags for its use. We've been using it for almost 8 months now, and have found it to work fairly well.
Appearance is not the most important factor in choosing a garbage for diapers, however, when you spend days or weeks putting together the perfect nursery, you don't want something so ugly that it distracts from the overall cuteness of the room! The Diaper Champ is white & blue and looks like a new age garbage can, so it's not distracting in a room. It is somewhat bulkier than other models that I've looked at (Genie, Dekor), so it doesn't fit quite as neatly into a little corner.
Assembly & Use
The Diaper Champ is very simple to assemble. Following the minimal and straight-forward instructions that were included, I had it ready to use in less than 5 minutes! Similarly, it's also very easy to use. The Champ has an opening in the top where you place a dirty diaper (or 2 if wet only). You then grasp and flip the handle on the side, and a weighted plunger forces the dirty diaper into the basket and leaves you with a clean opening once again! The best part is that operation only requires one hand, so you can easily dispose of a diaper while holding your baby in the other arm.
The biggest positive to the Diaper Champ is that you do not have to purchase special bags to use with it. You can use regular garbage bags. They are easy to install. There is a handle to pull up on the side, that will release and open the top portion of the basket. Place the bag in the basket with the top fed through a smaller opening that falls right below the weighted plunger. Then close the top and you'll hear it snap. Voila! You will need to use 2 hands to install a garbage bag, because the bottom of the basket must be supported while opening the top, however, this is a plus if you have older children that you would prefer not be able to get into the dirty diapers!
Cleanliness & Odors
Upkeep of the Diaper Champ was essentially non-existent until Kid started on solids. In the early months, the basket would hold 4-5 days worth of wet diapers, so I only had to change the bag once or twice a week. To keep the basket fresh, it's best to spray Lysol (or your other favorite cleaner) in the basket every few bag changes.
Once Kid began on solids, the odor containment function of the Diaper Champ changed significantly. However, I still prefer to keep the Champ over throwing diapers in a regular trash bin or having to run out to our garage garbage after each change. I usually dump the contents of dirty diapers into the toilet after changing and then throw the diaper into the Champ, so the odor is probably not as bad as if the diaper was just thrown into the Champ. Although the Champ does not completely contain odor, I feel that it does an adequate job for the short period of time that I need it. I do not leave a bag in the Champ for more than 2 days (usually changed each night).
I have found that sticking an Air Wick stick up air freshener inside the Champ's can significantly improves any odor leakage when the Champ is opened and closed. I still also spray Lysol in the can at each bag change.
I still prefer the Champ over a regular garbage. It does contain odor with a few added steps, although not perfectly. For my situation, it's more convenient than immediately running outside to drop the diaper in the garage garbage. The Champ is easy to use one handed, and it keeps diapers out of the reach of little hands in the nursery.