I have an enclosed shop area in the back of my garage, and it gets really hot in there during the summer.  I've thought about getting a portable air conditioner for a while, but didn't really know what to expect.  The first thing I noticed about it is that it's more sleek and stylish than any I've ever seen before, and it actually looks nice in the room instead of being an eyesore.  I keep it on low mode most of the time, and it's very quiet.  It cools the whole room easily, and I like that it also has a fan and dehumidifies.  It even has an LED display and comes with a remote.  Also, it was easy to install which was a huge plus.