"I recieved my Amcor AC about three weeks ago. We were having a heat wave here in Co, which is unusual for us to have 90+ heat. I had purchased a evaporated cooler at the Hardware store the week before, but returned it. It was just a step above a box fan. I then ordered this air conditioner online. It is heavy, and a bit dificult to take out of the box. I am a widow in my 60's, but I managed to unpack it, set it up, and even had to cut the window kit down to fit my double hung window. I turned it on, and nothing happened. I was so disappointed. Then I read that you should not tilt it. My neighbor had brought it into the house, and he tilted it. Also I tilted it to unpack it. The manual says, if it has been tilted, you have to wait at least 2 hours to turn it on. I waited, and it works wonderfully. The low speed is all I have used so far. The high speed makes it a bit too cold. It keeps a large space nice and cool. I may just buy another for my upstairs."