Sandbox gameplay, great graphics, dedicated developers
The graphics are awesome and are only going to get better (the developers already have talked about improving the frame rate in March, shadows, etc.) What's great is that the engine is able to render a high level of detail on a moderate powered pc. You don't need a top of the line graphics beast to play it. The gameplay is awesome. So many customizations and options, guild, PVP, crafting, you name it. I've only just tipped my toes in the water of all that is available, but I can already tell that this game is fun and will hold my attention for months/years. The developers are very hands on and listen to the community, which is a nice change. The story is really cool, sci-fi post apocalyptic. The world is huge. It is going to take a long time to check everything out. Overall, this is one of the most promising MMORPG's in a long time. Also, this company will be making Fallout MMORPG next year, which is great.