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 It doesn't consume computer resources
Pro Easy to use
Pro Supports many languages
Con No linux support
Con Distasteful UI
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 The mobile app is bad
The mobile app has lots of bugs, glitches and even random shutdowns.
Con No server region choice
You cannot choose nor specify which location you'd like your server to be in.
Though it chooses the server region based on your geolocation.