I've had the iTouchless 13-gallon can for about 4 years now. If you are concerned about replacing batteries all the time, don't be. We have changed the batteries ONCE. Seriously. And we use the can a lot--with toddler grandchildren experimenting with it, forcing it closed, opening it just to watch how it works, it still has held up mechanically, and the batteries kept going and going. The lid is effective at keeping odors inside. Unfortunately, a plastic part on the lid has finally broken, so we are replacing the can with the wide opening version and looking forward to many more years of not having to touch the lid of our trash can. Warning: This will make you look like an idiot at friends' homes when you just stand over their trash can waiting for 'service'!