I'd seen people use multiple screens for many years now but wasn't sure of the benefit. But the price was right so I decided to give this one a go and it's changed how I work now - it would be really hard to go back to working without a second screen. And best of all, this is portable so I can take it with me when I'm not working from home. I'm not sure how this compares to more expensive versions, especially the type that latches on to your screen, but if you are like me and wanted to try using more than one screen, this is a great one to start with!