This was a fun read that flew right by. I'm not as familiar with Conan as I am with, say, Edgar Rice Burroughs, but this book reminded me of the best parts of that genre. Palacio is here to tell you a fun, satisfying adventure story, not show off his intricate worldbuilding or subvert genre tropes. The setting is actually pretty unique (though I don't know why; sword and sandal + Mesoamerica seems like an obvious pairing) and there's a distinct lack of both the nihilism and sleaze that plagues older fantasy novels.
The part I loved the most was the characters. Cayucali is a fantastic warrior, blunt and hot-tempered, agnostic in a world full of passionate cultists, but unlike Conan he has this tired Dad affect, and there are hints he may find something worth praying to someday. Tezca was the character who impressed me the most because I think he easily could have been insufferable, either too much of a brat or too nice for me to buy his flirtation with the dark side. He manages to walk that line, and I can't wait to see where he goes in the next book. Xhoc and Zolin were compelling in their roles, and I really wanted them both to make it. Itzamma, like Tezca, walked a fine line, creepy but still convincing as a tempter. The condor had just the kind of magical mystique I love in fantasy--there may be rules, but there's no system this creature is beholden to.
I'm excited to see where this series goes!