I've lost track of hours & hours when playing this. The only problem with this game is that people don't want to play it anymore. Or at least the people on my XBL-Friend-list. I'd love to get the last few achievements for this game too. This is worth playing for the fact you get new weapon loot randomness. Who doesn't love loot?
There's wonderful treasure chest room areas that you'll want to check again & again.
Though if you play solo it can kill the game once you've already beaten it.
The combat system is good while making it challenging so that when you level up, so do they.
I've already pre-ordered Borderlands 2 based off of the fun I've had in this game.
There aren't many drawbacks to this game I can think to list... The only problem seems to be people who tire of it after beating the play throughs & you're left with awesome DLC expansions that you need people to play with.
Every DLC content for this game is worth getting too.