Other than that it's honestly better than both teamspeak and skype.
This is inly half-true, because, you know, everything is better than skype. TS is way better in everything voice-related, from channels setup to the sound quality and settings. And I have whole MMO guilds who tried both programs to back me up on that.
Will have to note about how servers will be paid for in the future
Wait, really? If that's true, that just made my day, cause the free part of it is what makes most people go for Discord in the first place. If later one will have to pay for server on this, there will be literally no reason to use it over any pay-for voice chat.