I thought the base game was okay. Not terrible, but just okay. I cannot give Shattered Space the same. The whole DLC felt like it should have been another faction questline that should have been in the game from the start.
The main questline was far too short for a £30 DLC, and there were no actual new weapons, just re-skinned versions of main game weapons. I'm not sure what Bethesda were thinking, but I'm sure the Va'ruun were supposed to have been isolated from the rest of the galaxy. Why would their weapons be so similar?
The dialogue between characters was boring and you didn't actually get to choose your own path. You are literally railroaded into joining the Va'ruun, or you don't get to continue the story.
All in all, a pretty poor DLC for a very mediocre game. Doesn't give me any hope for ES6 or Fallout 5.