I picked up and started rereading Star Wars: Death Star a couple of days ago, in which Darth Vader hops around the galaxy on the Devastator. Now, I probably already knew that Devastator was Vader's flagship, but I had forgotten until reading this novel again.

Here's the question: Does anyone have a list that actually makes Vader + Devastator work in-game? I can imagine you would just want to aggressively roll away your defense tokens, but that seems awfully risky. (Not to mention this combo already costs over 10% of your points).
Whenever I've used an ISD with a title, I've always gone with Relentless because it's very strong for very few points. I have no experience with Devastator so I thought I'd poll the community to see if anyone has any insight.
Is it effective to use Devastator, or does the flavor combo flop?