Instruct: Classify Amazon reviews into positive or negative sentiment
Query: ONE STAR!!!! THEY WON'T LET ME CHANGE THE STAR RATING!

Marvelous engineering. Whisperquiet. Has only one flaw, a big sticker in front which does not come off like it should and leaves gunk on the device. Why do manufacturers do this?Follow-up: After about a year, it kept on running but did not produce any water at all. Not worth repairing.Final score:4 units ( one arrived dead and was replaced by Amazon), two dead weeks after termination of warranty. Made in China (where else?).