I watched the first two episodes. According to the one other reviewer on IMDb at the time of me writing this, it gets good after episode 5. Sorry, but I'm not the type of person who wants to wait that long in the hopes that something gets good. In my experience if something is going to be good, episode one is also good.
Visuals - The animation is alright. The fight choreography is pretty bad, along with some of the character designs. The overall look isn't terrible, leaning more on the generic side of things. I like how this seems to pull from cultures like the Mayans/Incas/Aztecs. Not a lot is done with this setting, but it is kind of nice.
Plot - This premise doesn't seem that interesting to be honest. There is some potential here, but it seems like its going to just keep being boring. The only real option I see from this show is the two leads (and others) melodramatically riding around on those horses for the rest of the runtime leading up to an unsatisfying fight scene as the finale.
Characters - I don't even know. There isn't a whole lot of development as far as I watched. I want to know why the princess has those ears.