My friends and I used to use Mumble, but setting it up was a pain in the ass. I spent several hours trying and failing to set up a local server before giving up

My friends and I used to use Mumble, but setting it up was a pain in the ass. I spent several hours trying and failing to set up a local server before giving up and switching to a service whose bottom-tier servers were free (but also required a fair bit of setup). You had to do some tweaking just to use the client, too. When the service I was on started charging even for their bottom tier, switching to Discord was a no-brainer. It just works right out of the box, at least for most people.