The True Vault Hunter mode in 2 was unplayable alone.
Yeah...I thought I'd finally bang out the platinum trophy, but playing TVH mode solo to reach level 50 and gear up for Terramorphous is proving to be a fucking nightmare. I love the fact that they actually put some work into the mode, creating modified versions of enemies instead of just giving them more hit points and higher damage, and appreciate that it's actually a challenge - something Playthrough 2 in the first Borderlands sorely lacked - but it's proving to be more frustrating than fun, in no small part because 1) 95% of the guns you find over the course of playing are weak, inaccurate trash, 2) the skill tree was gimped to encourage (i.e. force) cooperative play, and 3) the whole "Badass rank" is a friggin' joke, unless dealing an additional 14.1% Gun Damage is meant to constitute being a badass. At no point have I ever felt like a badass in Borderlands 2.