What I like most about Webex is just how generally good it is. Of all the business applications that are used in my organization, Webex is one that I've come to trust that it will always be working, and working well. It is easy to use, and the quality of the calls are top notch. Our organization uses a number of web conferencing services, including some that we host internally on our own infrastructure, and I often recommend Webex over our own internal service as it is just that much better in terms of quality. Despite the fact that it lives outside our network, I have never noticed any bandwidth or performance issues, and this is saying something considering that our internet link is notoriously inadequate. Of the variety of external services that we do use, I've found that some are often finnicky or don't work, but Webex works 100% of the time. It is my go to for large scale meetings where quality and reliability are of the utmost importance, because I know that it will deliver.
One gripe I've always had with Webex are some of the quirks surrounding audio. For one, the functionality where call in users are linked with their web sessions is pretty weak. While you can certainly do that, I've found that people don't really understand how it works, and we typically end up with about 75% of call in users who are not linked, which can make it really difficult to figure out who is speaking. Improving that process would definitely enhance the experience. Also, integrated audio and teleconference audio do not seem to link, which is a bit odd and annoying,. it would be great to bridge those two audio services, so that all users can hear each other, regardless of which audio option they are using.