+ The game provides lots of details, choices, and ways to customize your character. All these choices will affect how story proceeds and how your character relates to the residents in the gameworld. Be a bad, good, or neutral person.
+ Impressive gameplay & combat system adding more variety and options to your play style.
+ No Internet connection required to play.
+ Vivid world. All NPC dialogues are spoken, not just read. NPCs also 'chat' with each other.
+ No grinding. The level cap is 20, that means you could get to focus & enjoy the story and gameplay more.

- No online play.
- Graphics may look a bit monochromatic to some people since the story is taken in a world after an atomic war where almost all things are destroyed. (But I don't mind at all)

* Expansions. You can download expansions online through Microsoft network, at a cost.