Love this bin - I wanted a bin that I could manually open and close so I could give it a good clean without affecting batteries. This does just the job. It has a super lightweight opening & closing mechanism which can be used with just tip of finger. Infact I just use my knuckle so I don't get germs on the lid - and what a difference its makes to keeping the bin clean!!  Just a simple wipe down is all it taken so far.  The simple shape of the lid and how it fits on top of the bag means no annoying crevices where food stuff gets stuck on it.  Would highly recommend it for people who aren't bothered about manual operation!