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

I purchased 2 of these humidifiers from the sharper image. I am assuming they are the same type and model with the sharper image logo. This was absolutely the best humidifier I ever purchased, it was convenient, easy to use, and compact enough to sit on your nightstand. My dissapointment came that when we took them out to use for the 2nd winter season they only worked a few days. We followed all manufacture directions using distilled water and cleaning them daily after use. The went from turning off after a few minutes to not working at all. Sharper Image assumed no responsibility for them since they were a year old and the only help I got was to send them in to a address to be repaired with no phone number. I had no idea where they would go, how much it would cost, nothing. So, great idea but expensive if they need to be replaced or repaired every year. I almost purchased 2 more but decided it wasn't cost effective.