By "works better" I mean that it largely implements all the same features of other competing video conferencing products but does them better / more reliably /

By "works better" I mean that it largely implements all the same features of other competing video conferencing products but does them better / more reliably / with better usability. "It just works." Compared to Slack we have fewer problems with people dropping out of calls or losing audio or video and audio and video quality are generally better. Screen sharing is better quality and less buggy and let's you share individual windows. For calls with people outside the team we have fewer problems connecting than with Skype or Google Hangouts. It handles people calling in by phone or from mobile devices with poor connections more robustly. Overall no real revolutionary features, just consistently good execution.