We're in the process of trying to get a trial for Zoom, as we initially bought in heavily on Google Hangouts and it's proving to be a terrible UX. I know how to use it, and I've shown everyone how to setup meetings, add rooms, etc... several times now, but it never sticks.
I say "trying" to get a trial, as two people from our company have contacted Zoom multiple times, and while the initial contact is great, we just cannot get any followups. It's very frustrating, especially considering that all my dealings with Promevo have been absolutely outstanding.