K.D.
I have the Diaper Genie II and I can tell you that it works FAR FAR BETTER than the first one. Yes, you spun the thing after each diaper, but it got stinky after the first couple of months and I could not get the stink to go away.
I live somewhere that I cannot just take the diapers outside to the garbage (wild animals) so I rely on my diaper genie II -- and I couldn't be happier. The secret is to follow the instructions that came with it and wrap each diaper up as tight as possible before putting it in. Then, when you empty it, try very hard to keep the "bag" that it goes into as small as possible to start with. I only empty mine when it is full (once a week or so) and I have no problems with any stink -- which is surprising because the changing table is in a bathroom that does NOT have an exhaust fan. Good luck to you.