We use the filters when I forget to get a new filter for the Pur....I know you don't have to use them if you have bottled or filtered water,,which is a great option. I also like the option on 2.0 K560 that lets you know when the filter needs changing. I think it's a great fall back option and yes I do prefer using the filter to buying H2O and having to deal with the bottles or jugs,,less to carry...