*The series' writing
*The series' balancing
*The game after a certain period, or find it boring
Then you will not like this game. However, I do not have any issues with these, and this game heavily improves the base game in areas such as:
*Weapon balancing similar to Borderlands 1 (Multiplier assault rifles, non-legendary weapons that are actually good, ability to buy good weapons from shops)
*Character Variety (Each character is unique, very vocal outside of combat, and has unique play styles)
*Story (The storytelling is great, even though people usually have problems with the series' writer Anthony Burch, and jack's fall is handled excellently)
*Incredible end-story (Not to spoil anything, but the second half of the game is incredible. Tons of action, Eridian vaults are actually more connected to their species and society, major reveals about the universe outside of pandora)
*High-movement (low gravity and even on helios space station the Oz Kits are still useful)
The characters are as follows, not including DLC:
Hate stupid gimmicks? This character is for you. Wilhelm is about raw power. Cybernetic legs that let you shoot while sprinting? Check, and this is more useful than it sounds. Changing, increasingly-robotic voice with each upgrade? Check. Status buffs? Hell, he has 50%-100% buffs in almost every facet! This character may seem boring, but he's actually great if you want a regular experience. Best character for assault rifles and DPS. Not only that, but you can replace the Fight for your Life mode with a Nuclear Detonation countdown, as you zap everyone around you while walking on your two feet.
Stat buffs, aimbot skill, crazy whip, and a play style that is similar to Krieg in that you have to keep up the action. Best character for Jakobs Pistols and high-damage weapons.
Love captain america? This lady is for you. Enough said. Best character for survivability.
4. Claptrap the Fragtrap
Do you love random nonsense, and cannot get enough of it even in a game like borderlands? This is by far the most fun character, especially to play with. The best support character there is, if you play him right. Great with shotguns.
87/100, would reccommend heavily to people who love games filled with nonstop, frantic action that don't take themselves too seriously and for people who get bored of modern shooters.