When I first saw this game, the first thing that entered my mind was "oh great, another drug dealer simulator, just what the world needs".
But the explosive rise to the top few most played games on Steam got my attention, so I decided to try the demo. Although I'm not really a fan of the premise, this game has something special and immersive about the gameplay that has a way of making you want to find another 5 minutes to play, and I've found this addictive quality to be increasingly rare in game releases.
Even if the "Breaking Bad"-like premise of peddling drugs doesn't appeal to you, I'd highly suggest trying the "free sample" -- because dollars to donuts most of you will understand the irony of labeling the demo as that within the first several minutes of gameplay.