We are really happy with our diaper champ.  It doesn't cost anything to use and keeps the stink at bay - and we have some screamin stink nowadays.  It is fairly easy to use although sometimes I have to give it a whomp to get the diaper to go down in the pail.  It is better than a traditional diaper pail with lid because my toddler cannot get into it and it is sanitary.  I did not want to buy a diaper genie because I could not see paying for costly refills all the time.  In our book, we love this as it does it's job and has saved us money.