I was noticing on Amazon.com that the portable air conditioners (that can be wheeled from room to room) have gone down in price. Consumer Reports reviewed them years ago and said they weren't energy efficient. The new units my Danby, Mobile Air and others are combo a/c, humidifiers, and heaters.
Anyone have experience recently and are there any recommendations. My apartment has the under window sleeve for air conditioners and I do have two, but one is as old as the hills and fails to work most of the time. A replacement would involve getting someone in to install it, and re-plaster the wall around the sleeve. I could also use the portable heater in the portable unit.