Gamespot:
In Claptastic Voyage, you learn that there is more inside Claptrap's rusted head than bugs, dubstep remixes, and horrible loneliness. Nestled deep in his chrome dome lies a particular MacGuffin desired by Jack above all: the H-Source, a powerful code, used to unlock Hyperion's greatest assets, such as badass weapons. Without other options, Jack digitizes his chosen vault hunters, sending them into Claptrap's mind. They do battle against vicious bugs and viruses, all the while exorcising some of Claptrap's inner demons. The story occurs after the events of Borderlands: The Pre-Sequel, and at last explains how the plucky robot goes from accomplished vault hunter to fending off bullymongs in the frozen wastelands of Borderlands 2. But where Claptastic Voyage excels, such as in its new enemies and awesome glitched weapons, it stumbles in mission design, leading you along one dull fetch quest after another, even though a surprising change of scenery helps alleviate the mounting boredom.
Destructoid:"The first and only big story piece of downloadable content released for Borderlands: The Pre-Sequel earlier this week, and I just finished playing through it. As usual, I took a bunch of screenshots as I played through. Fair warning: these screenshots contain general spoilers for the content, including special areas, boss fights, and cinematic cutscenes. Peruse at your own risk."
GR:
Borderlands has had no shortage of DLC expansions, but the Claptastic Voyage definitely stands out. Like Borderlands: The Pre-Sequel itself, this story is supposed to help fill in the gap between Borderlands and Borderlands 2, picking up where the Pre-Sequel story left off. When Handsome Jack finally takes over Hyperion, there is one last hurdle for him to bypass before he can have access to all of the secrets Tassiter has hidden about technological advances made by the organization. Those secrets are known as the H-Source Code, which Tassiter has hid them inside of Claptrap, and in order to retrieve it Jack needs to digitize some vault hunters.
Borderlands: The Pre-Sequel's fourth and final DLC, Claptastic Voyage, takes Vault Hunters to a world of pure imagination. Yes, it's time to dive straight into Claptrap's head and see what messy memories you can dredge up. How much therapy will you need after playing this mini-campaign? Shacknews' review.
6/10?
Good thing I'm getting it at a cheaper price next week with the handsome jack collection.