Dumb question w.r.t washing machine: don't you have to dose detergent in with each load, or do newer machines have some sort of large reservoir? If the former, how would it know if you're running low on detergent?
This model has a large reservoir where you can pour the entire bottle and it'll autodose based on some settings. It's a nice convenience that you can just put the clothes in and hit start to wash with defaults.