Time for another review, this time Dennou Coil.

In the not too distant future, Augmented Reality has started becoming mainstream, with the city of Daikoku designed to be half real and half virtual.
When Yuko moves to this mysterious city with her family, her virtual pet gets infected with a mysterious virus which starts her on a path of mystery and intrigue as she and other children in a group led by her grandmother investigate the true nature of Augmented Reality technology and how these events link to the disappearance of children in these virtual worlds.
This is definitely the most interesting concept I've seen for a while, especially when the technology for Augmented Reality is now close enough for this anime to exist in reality, so it comes off as a cautionary tale of what happens when you push that technology too far, like driverless cars in Ex-Driver or any anime where you get stuck in an online game like Log Horizon or Dot Hack.
Dennou Coil's only real issue is it's art style, the colour palette makes it really hard to tell the difference between real and virtual, also the world building does take time to establish but the payoff is worth it.
Not seen the dub, I assume it to be passable.
Final Verdict: A solid idea with decent execution, worth the time if you are prepared to watch the slow world building but the payoff is at least worth sticking with.