I bought this heater for my desk at work because they keep the office area very cold and although I don't mind wearing an extra layer or two, I sometimes need to take off gloves and scarves in order to get my work done! I have this heater right by my legs and it does a great job of keeping me warm while I'm at my desk. It's also relatively quiet so I don't worry about bothering my colleagues with buzzing sounds. I'm not sure why it has two sides where heat emits from, it would be just as well to not have divided it in the middle because the heat blows from both sides in the same direction. I unplug after use (as you should always do with all space heaters) and I turn it off when I'm away from my desk because all portable heaters can cause fires. Nice heater for small space.