I use the app mostly and don't see notifications, but I just logged on the computer and saw that aqualuv tagged me in Wednesday's OOTD thread. I thought I'd weigh in on the diaper pail talk.
I have the Ubbi pail in gray and love it. I think it contains the smell really well. The few times we have forgotten to close the lid, the room smells. But with the lid closed, it doesn't smell at all. We use small trash bags in it and probably have to empty it a couple of times a week. Plus, for a trash can, it looks nice.