Gonna stick my neck out and declare it a sure fire hit. You have all the weekly procedural crime solving elements that seem so popular. Factor in the mystery of alternate realities and you suddenly have a show that will appeal to a really wide audience. I am a big fan of Isaacs too. I am working my way through Brotherhood at the moment and its good to see he will be back on the small screen.
Not bad, im a bit bored of crime procedural shows, and this one might have two crime cases per episode if this pilot is anything to go by, for now this show is a little different and i will stick with it, i prefer the personal life and how he handles the two realities with his police work (though wished he had worked else where).
Im wondering if the main character played by Jason Isaacs is stuck in purgatory, though that would be too obvious. His son in this series was the actor who played the son of Jack Shephard in "Lost." and we know how that ended.