Well, it's essentially a big ass dungeon crawler. It's a bit like Borderlands in that the emphasis is on loot more than anything. If you're playing it as a traditional story based FPS, and were expecting some tight narrative to drive you forward, it probably just isn't for you. The point of the game is merely to improve your character's stats and gear, and fight progressively tougher mobs. It's repetitive by nature, and if you find no satisfaction in constantly tweaking your character, and looking for more loot to do so, it's probably just not your cup of tea.