I have tried some other mobile stands, but all of them suffer from the same problem: you cannot keep the phone straight. The phone will be tilted at an angle. This is okay in most circumstances, but when doing video calls/recording, it would seems as though you are looking down on the other person.
This stand can keep the phone almost near vertically. If you change the angle too much then the phone will fall down or the stand will topple. You can also charge the phone while using the stand and it can even accommodate phones with thick cases.
The stand is really sturdy and I have no doubt it will last for a long time to come. However, it is expensive.