In brief, this anime is a story about a war against overwhelming odds (the Mongols) and the struggles of the individuals involved. I found it to be an entertaining and compelling watch, and I would recommend it to anyone looking for a decent war anime who doesn't mind somewhat shallower characters in exchange for a focus on strategy and the human condition.
The characters are many and often not fleshed out too well, but I thought that overall the characters had realistic personalities and motivations. The warriors used interesting and seemingly realistic battle strategies, and the story progressed in a logical manner. Personally I wish certain character relationships had different endings, but this anime demonstrates remarkably well the cruelty and randomness of war.