Ranked in these QuestionsQuestion Ranking
Pro Completely free - not even a server is required
Unlike other popular VOIP gaming services there is no need for a server to use this app nor is there a cost to use it. It is completely free for anyone to use at all times.
Pro Supports both voice and text communication
Curse Voice allows you to create a voice call, or text chat with your friends. This allows for flexibility - if you can't understand someone because of their accent, or if someone doesn't have a mic, or any other reason, you can still use the chatroom for typed messages instead of verbal ones.
Pro Game Integration and overlays
Pro Supports many languages
Pro Easy to use
Pro It doesn't consume computer resources
Con Changes could be coming soon
Twitch (which is itself owned by Amazon) has recently bought Curse. Down the road, it's likely we'll see changes to Curse that are imposed by Twitch (and Amazon).
Con No linux support
Con Distasteful UI
Curse tends to clutter their app with many useless stuff, they do try to fit a great many things onto one tiny box. If the UI is something that you look in a program, this isn't for you.