I love this game.
I myself will max level all 4 playable classes. So there is a ton of replay value there. There is a new game+ mode that allows you to play through the game again with the starting area enemies up around 35 as opposed to lvl 1 when you start it initially. Its fun plain and simple and if any of you want to know what a loot gathering game offers in terms of addictive entertainment look no further, Borderlands has you covered. My goty.