Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult to clean

I'd love to keep using this product, but I can't because there is no discernible way to clean the water inlet. This is the clear corner of the unit where you can see your water level. Because of the way it is shaped inside, turning it upside down does not remove all of the water. Turning it on it's side doesn't work either. The two holes for pouring the water through are so small there is no way to clean out all the mold that has accumulated in there. Unfortunately, I have to toss it.