A plastic trash can is very much easy to clean and keeping it odor free is also a breeze. This will have trash liner expenses reduced a lot. If you will delve into having the bag emptied every day, there will never be any odors that you will need to deal with.
The automatic model is sensor controlled and has a lid which quickly opens when the trash bag gets about 10 inches and 130 degree angles from the can's sensor. With normal usage, the power will last about 6 months with 4 D-size batteries. For those that do not require trash bags, the inner bucket can be easily removed and cleaned when the trash is removed and taken out.