Even when I was a 9-year old I wasn't impressed with Vader. What doesn't fit is that guy from Episode IV being one of the most infamously bad- guys in the galaxy, but this Vader fits with the originals in actually earning that reputation for the first time since we saw Anakin in action in the prequels. The old Vader's stiffness and simple lightsaber technique is particularly striking when compared against Darth Maul or any random Jedi from the arena fight scene in attack of the clones or even the similarly-stiff Dooku who at least used his force telekinesis during combat, something Vader rarely and rather lamely did during the originals. Yes, I wanted that scene to continue for TEN minutes, and I hope we get more content between episodes III and IV to have that happen, which is eminently possible given that several decades passed between those films. I had heard he had more than a cameo but nothing else specific, so I was wondering if it would be him who would show up and go after Jyn and Cassian...that certainly would've been more dynamic than the management dude Krennic weakly going after them.