Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Coffee - Poor Design

As many previous reviewers have said ... this thing is a pain in the butt to clean, but beyond that it just is a poor design. There are all sorts for uneccessary and/or useless design points.In the water delivery system there is a small knob that you are supposed to set based on how many cups of coffee you are making. IT ISN'T CONNECTED TO ANYTHING!! And doesn't how much water you pour in control how much water is heated. What sort of nonsense is that?Buy a separate coffee grinder and use your old coffee maker. You'll save a lot of time otherwise wasted on cleaning this thing.