Never said Book One was a wash at all, though there were a lot of problems, IMO.
In terms of visuals and action, Korra is second to none, but the character development for Team Avatar 2.0 was practically nonexistant, the love traingle was excruciating, and too much time was spent on pro-bending. And that's not even touching how the Equalist movement and Amon were handled in the finale. Mike and Bryan have an unfortunate tendency of telling rather than showing.
They did give us Lin Bei Fong, however, and because of that I'm willing to forgive many sins.
Luckily I just read that the writers who gave us the Boiling Rock two-parter in Book of Fire are back for S2, so I'm optimistic.