Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed in this coffee maker

The product details state that many size cups can be used for this machine. The only one that fits is the one that comes with the coffee maker. I also read that it comes with an extra base for larger mugs. It did not come with an extra base. The height of the mug can only be as high as the one included with the coffee maker. I purchased this thinking I would be able to use my "favorite" mug, but I can not.