In this article, the author discusses five key characteristics that can provide a seamless video call experience rivaling those offered by major platforms like Zoom, Google, and Microsoft. These include user controls for the current user, a way to see all users in the call at once, call info such as number of participants and audio/video states, maintaining high video quality even under poor network conditions, and host controls for managing other users' audio and video states. The author also highlights how Agora can help developers implement these features with ease through its UI Kits.