Worth learning how to use. You'll love watching your friends lie to each others' face. It's hilarious and Super fun! Very easy to use.
As someone who previously used a discord server, I can say that this takes Among Us to the next level. With discord, the process is tedious and very manual. You have to do a lot of coordination. And even then a lot of new people don't know how to mute themselves. Also on discord you have to make an account and all that BS. So long as 1 person knows how to run Rume Among us, the rest of the party will have a blast. Just start the game and get playing. No making accounts, joining servers, or any of that stuff. Just get the link, type your name, type the code, and play!
It's better than discord because you can see people's facial expressions. Think you got a good poker face? Think you're good at bluffing? Wait till you try this!
Also! Rume Among Us makes being a ghost much less boring because you can gossip with the other ghosts while watching the show unfold!
Verrrrry Easy, Super fun!
Definitely recommend making Rume Among Us a weekly thing with your group of friends :)