There are times when you buy something and go wow! This it it. It makes emptying the bun so much easier and cleaner. That's the main point. The ease of throwing away of bag filled with dust and dirt. Now I have been using my clean station for about 3 months and because I am remodeling my kitchen and had doors installed I have been vacuuming probably every 2 -3 days. The bag has not filled up yet. So storage is plentiful. Wow a great addition to cleaning and if one buys it you will be estactic!