... just about any other situation in which one has one or more monitors that one uses and there is a location in one's work space to clamp this to.
Until having this dual-monitor support available, I didn't realize how much wasted desk-real estate was used by the supports for my monitors that were sitting on my desk.
This not only makes it easier and more flexible in positioning the monitors but also, gives me more space on my desk that I wouldn't ordinarily have had.