None of the Borderlands 2 DLC's are "pretty good" imo. If you played one character to 50 you have seen everything. The pirate DLC has some fancy bosses and -1- extremely nice area but that is it. The other DLC is completely forgettable (Hunter) or absolutely terrible (Torque..) unless you like torque weapons.
If you already reached level 50, then the DLC besides being totally forgettable is also totally useless since you don't level up there. And some content (especially the hunter dlc) is already very "late-game" leveled by design. For a new character going there essentially means making the main quest boring as hell. Since you out-level everything if you complete 1 DLC area within the flow of the main-quest (ie, when you reach the level requirements)
This is actually the most deadly of all the flaws. If you play the DLC when you reach the "optimal" level to play it's first quest then you will out level the main quest areas. They implemented it that stupidly that it doesn't even level to you. Unless you play the new-game+ mode but then .. well.. it's more of the same.