Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed

I received this espresso maker as a gift and initially was very pleased. However, after using it for two months the screw that holds the silicon knob in place on the lid started falling out. There are no threads holding the screw in so every time I use the espresso maker and wash it the knob comes off and I have to fish out the little screw inside the pot. It does make great espresso, but it's not worth the aggravation so I am currently shopping for another stovetop espresso maker. I don't know if this is a common problem for this type of espresso maker or just this particular brand. At any rate, I won't buy another Primula.