My husband got really impatient with D.G. (Zooey Deschanel), I think mostly because we were watching a lot of Buffy the Vampire Slayer at the time, and he kept expecting the butt-kicking to commence. (I wonder if he'd like it more now that we're Doctor Who marathoning?) The pacing is definitely slower in this one, as D.G.'s yellow brick quest is drawn out into 3 hour-and-a-half parts.
Overall, I enjoyed the reinterpretation, and learning the truth about the Wicked Witch in the slow reveal. It's worth checking out if you're an Oz fan, although I'd recommend blanking your expectations-slate as much as possible.
You can play around in the SyFy Channel's special feature zone if you're interested.