Huh, I wouldn’t go so far as to say I hated it. I can’t even watch Attack of the Clones from start to finish, with Rogue One I was mostly just bored and winced at some of the callbacks and most of Vader. I wouldn’t say Vader going nuts is worth a 0/10, but I do think it’s severely out of character. A friend of mine said he was reminded of one of the video games featuring Vader, which goes to show what they were going for there. Video games, not the original character as seen in Star Wars and Empire.