Props are utter garbage. The scuta shields look like rubber and flop around everywhere, the armor is shapeless and made of thin leather, even for people like Augustus, and the actual battle scenes look ridiculous. The content is not bad, but by god the visuals are horrific. Casting is also hot garbage. Germanicus is an old-ass-man, Aurelian is scrawny and bald, and the less said about Constantine, the better.
Amazon also managed to somehow put all the episodes in the wrong order, so there's that.