Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked well while it did...

Worked very well for one summer... Temp control is definitely worth it since it shuts off the fan at your intended set point and you don't wake up in the morning in a very chilled out room! However, both the fans crapped out the next summer. Controls seem to work since both motors create a humming sound... with increased intensity for higher set speeds... but the fans don't work.. even if I give them a nice nudge with a pencil! Not worth shipping out on my dime and other hassles of redeeming warranty. So was happy for a year... wish they lasted more than once season :(