For a lot of people, Attikus and the Thrall Rebellion is going to be too little, too late. Battleborn has been plagued with issues since its launch, from poor PC performance to a rapidly decreasing base of players causing long wait times to get into a game. Season pass holders and cooperative-only players have good reason to be annoyed; it's taken five months since launch for this first piece of story downloadable content to release.
That said, anybody who stuck it out with Battleborn should be pleased with Attikus and the Thrall Rebellion. What's here is short and sweet, but it manages to be surprisingly replayable. For five bucks, it's an easy recommendation.