Vader's scene at the end was probably the scariest he's been in the entire series though, yeah.
That scene really bugged me. It was blatant fanservice with no real effect on the story, thrown in at the last minute (both in the sense of the movie's runtime and its production) to pander to the vocal minority loudly demanding that the movie focus on Vader slaughtering people. Give Abrams some credit, at least his fanservice revolved around the near-unanimous agreement that the original trilogy was far superior to the prequels. He wasn't simply catering to reddit. If the filmmakers had really wanted a scene of Vader being a badass, they should have made something that actually impacted the story, perhaps a scene near the beginning of the film to establish how dangerous the Empire is. Of course, they weren't interested in what such a scene might add to the story, and so they threw it on the end as a last-minute plea for reddit's approval.