The idea of disposing of nappies, smell free & quickly is great but in reality its probably not worth it. We bought one of these on special & it wasnt long before we realized we didnt really need it. The initial price is expensive & the cost of replacement bags is even more expensive plus the thing is big & bulky, it doesnt fit on the change table & if I put it next to it the kids get into it hence why ours is now in storage waiting to see if my sisters want it when they have kids. Save your money & keep fit by bagging each nappy & taking it out to the rubbish bin!