Even if the plot is contrived and cliched, the art in this manga is actually quite good.
Not saying that just cause tiddy. Lots of details on each panel and some interesting compositions, plus varying costumes and highly-textured backgrounds.
Surprisingly gripping... and almost biblical in scale.
I was surprised that (history spoilers?)
I also enjoyed how accurate this manga was on doing further follow-up research. Genghis Khan is an ultimate rags-to-riches story.