[citation][nom]Proxy711[/nom]Solo wasn't as fun as party play for sure. Also the game was kind of bland before you got into the DLCs that's when the game became great. BL2 will be better then the first.[/citation]
I enjoyed the SP well enough to keep playing, but yeah, once I teamed up with a few friends, it became one of my favorite games of all time. Also agreed: the DLC rocked. Now, granted, the DLC is when I started playing with friends, but I still think they were better than the core game.
They've been learning along the way what works and what doesn't, so I have high hopes for the sequel.