I'm mostly fine with the animation now. I went straight from Korra to this, so maybe it was just culture shock. The chase and fight scenes were pretty smooth. It's mostly just the fluidity that's an issue, the style itself is pretty good even if I'm not a huge fan of the character design. I think I just associate the 3D character thing too much with cheaply made shows for preschoolers.
I'm pretty happy with the plot though. I finished the third episode which seems like the kicking off point since it's when Reyla, Callum, and Ezram(?) leave the castle and go to take the egg back. The first episode was super blah, but it picked up almost immediately in the second. It's not playing things as straight as I initially thought and there are a few interesting plot hooks.
I think I'm the least interested in the three main characters, particularly Ezram. He's not really done anything so far except be the plucky little kid. Reyla and Callum are good, just nothing mindblowing yet. That said, I have hopes for the other two. Reyla knowing that her buddies killed their dad and hiding it is good. Callum not knowing if the king knew about the egg and then deciding to abandon him is great.
The Dark Magician and his daughter, Dark Magician Girl are interesting. I like that he's not all doom and gloom. I honestly wasn't sure if he was going to be an antagonist because he's quite jovial, but then he stole Callum's voice with a desiccated hand so I guess that's kind of answered. Even then, they prefaced that scene with the king being a complete dick to him when I'm pretty sure he was going to offer up his life, so it's still not completely black and white. I'd also forgotten about a mirror he was fondling, so maybe he's secretly talking with elves through it? Dark Magician Girl is kind of the same way. She's setup to be Callum's love interest and she has some of that bright anime moe bullshit going on, but then she summons demon wolves and captures an elf to do god-knows-what to him. And then you have their son/brother, Celtic Guardian, who just seems like a pretty chill dude but is also related to two people doing soul magic.
Small addendum: I'm now like 80% sure the king's soul is in his pet bird. There's a lot of potential plot that immediately cuts off three episodes in if he's actually dead. And come to think of it, I think Dark Magician left the room without his snake basket.