Instruct: Classify Amazon reviews into positive or negative sentiment
Query: too good to be true

I couldn't believe the low price of this espresso machine -- and when it came, I couldn't believe the amazing quality of the espresso it produced -- it was ideal: stainless steel boiler, self-priming pump, easy to use, perfect crema every time. Then after a week of use (using it only once a day) it stopped working completely. I guess that's why it was so cheap... I'm sending it back and getting a more expensive Gaggia instead.