Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Melted knob but still good

I still will recommend this product even though the plastic frothing knob melted the first time I used it. Yes, I followed their directions. Be warned to make sure the frothing knob turns freely before powering up the first time since the brass stem gets VERY HOT and can melt the knob. My knob turned and turned but I didnt know it was turning nothing since it melted and I thought the frother was broken. This is a design flaw since a more heat-resistent plastic should have been used. Gaggia reps said they will send a new one so I hope they keep their word. Other than that noise is not a big deal since it lasts about 20 seconds and I don't hear it when I am drinking the coffee. ;) Froth is nice too after you figure the best technique.