Pros:1. Just the right sensor sensitivity -- not a lot of false opens when you just walk past. 2. Lid opens fast, so it's easy to use. 3. Just the right size for the kitchen 13 gallon bags. 4. Very economical battery use with an optional to use AC adaptor to save battery. 5. Just the right size: the height is convenient and comfortable, slips into even the tightest spots in the kitchen.