Really loved the first borderlands, finished the story 4 times now in 2 player co-op with a friend. Although I did notice a whole lot of faults and things that can and generally should be fixed/added/remove.
All I hope for in Borderlands 2 is more differing enemies, not the bandit - bandit with a shotgun - bandit with a sniper - skag - small skag - big skag that the first had. And more diversity in guns like they promised for the first one, not just 'This weapon deals 50 more damage and shoots GREEN - MAGICAL bullets, it has a different scope!' I want proper creative weapons.