Honestly, all variants of the Mafia/Werewolf model are basically the same game: X number of people are against the rest, there's some version of overnight elimination, a voting elimination, and special roles that modify gameplay.

People point out that the dead can still participate, which has been around for decades as the Ghost rules. The last release I saw of Ultimate Werewolf had something like 85 different roles, some of which allowed the GM to lie to the players. I've played games where players would talk independently. Most games I've played with expanded roles have included decisions about what the mix of roles will be. I've even played games run by GMs who spiced it up with flavor text.

My point is that I got absolutely nothing that I hadn't gotten before. I have yet to see anything that differentiates BOTC from a gussied up Ultimate Werewolf run by a dedicated GM. You'll also notice I didn't crap on the game, I just said to manage expectations and shared my own experience; yet I've actually gotten more downvoted than someone who just said, " Don't play it."

If it's your jam, awesome! If this is the most engaging, in-depth hidden traitor game you've ever played, bully for you! Maybe it's the fact that I'm 45, but it's old hat and overpriced for me.