The video side should be improved, especially if too many people log in at once. While they say that the solution can support up to 100 connections simultaneously, it slows down once 20 or 25 people join. So too, the quality of the audio decreases and this is in spite of one being in a good internet area with good network speed.
For the moment, Zoom only allows one to schedule, so it would be nice if it offered the option of creating channels, such as Slack does. The latter solution allows everyone to be on the same call with just a click.