The stories are good, and the locations are awesome. Guns are possibly the most interesting than any other game I've played. There's a gravity effect in the pre-sequel that annoys me more than it interests me. Borderlands 2 was mostly enjoyable, however there were parts of the game you simply could need beat without a team of 4. Side quest bosses and what not. But 2 was decent overall.

Thanks!! Is there matchmaking for the hard parts or not?

Nope. I played the first two with my roommate. You'd have to find someone on your own if you wanted to play with others.