Wasn't too impressed. NBC is going to have an uphill battle explaining to it's viewers why Constantine is not just "Elementary with demons" and this episode doesn't help that struggle for identity. It was smart for them to pair its timeslot with Grimm but that may only help it out so much. I doubt it will get renewed for a second season.
The only thing I really want as a fan is to get an Etrigan cameo out of this before the show dies. Eclipso, Felix Faust, or Zatanna would also be sweet.