[izgzhen]

Zoom takes care of customers with very heterogenous device/network conditions, which makes it reliable solution:

(1) Zoom works even in pretty bad network environment, and provides phone call fallback out of box; (2) Zoom provides a variety of clients optimized for many platform and devices.

If there are 10 people in a meeting, even 1 people facing technical issues can affect other 9 people, which is very different from typical software that can just ignore 10% customers without losing 90% customers.