I use it as a second monitor (left) in portrait mode. The adjustable stand is what I really need. The easy installation and adjustable stand allows for well-functioning tilt, height and vertical/horizontal adjustment. The quality is excellent, there were no problems with it for a month of use. The image quality is good, but this is noticeable with a higher quality monitor; My main monitor is 1440p and there is a noticeable difference. However, this is not the fault of the monitor. I have no comment on its ability to work as a standalone monitor as I don't use it for that. I think it should be good. Worth the price.
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