I am using this this cooler more than 6 month in summer session. This cooler not good quality wheels as against earlier one. I wish I could rate below 1 star, in my city where climate is dry temp below 40 deg. C. Climate is perfect for air cooler, but only thing I can say about this cooler is "high price and very poor performance. as far as cooling system not good. as far as cooling is concerned, This cooler is very lightweight, but it has failed completely to give even moderate cool air. This is a worst cooler, it even not good very very small room or cabin, This cooler has been failed completely it give even moderate cool air.