I agree with everyone else that they're still struggling with pacing. I kept getting distracted and then was totally lost. I think part of this is that Rob Thomas has never done a procedural before. Trying to establish the guest cast and the mystery while still giving Liv time to build relationships with the supporting cast, in addition to Rob Thomas's usual packed-dialogue, is a lot to do in 42 minutes. And while Veronica had a bit of a case-of-the-week structure, it really relied on the arc plot to drive it. I think iZombie still needs to find what's driving it.
That being said, I am generally liking this show and hope they give it time to find its feet. Rose McIver is really starting to settle in and I am always happy to have more David Anders on my screen.
My sister texted me "Is that Logan?" about 30 seconds after he arrived on screen. And because we are watching a show on the CW, I keep wondering just who we're working up to the be romantic interest. While I think Liv and Blaine (I also missed that name) seem to have more chemistry than anyone else, it's really going feel even more like Veronica Mars paint-by-numbers if they go that route.