We switched to the Discord Video a few weeks ago. We had been using Appear.in, but they just limited to only 4 people on their free plan. We tried to switch back to Hangouts, but had too many problems (seems like Google always starts with a nice product and improves it until it's inferior!). The persistent channel in Discord works great. We have some real computer challenged individuals in our group and they don't have any trouble. Some of use are using the browser app, some the native app. I do have to say that the UI seems like it was designed by an over-caffeinated squirrel, but after you get the hang of it, it's easy enough.