I finished it on Sunday. While wildly historically inaccurate, it is really entertaining. It has caught a lot of flak from critics because it isn't Game of Thrones-y enough. Those are two completely different things, fantasy and period drama. I really enjoyed it and hope they do a second season, though I worry about how it has performed. The show had a budget of 90 million, (9 mil per episode) and it really shows. The sets are incredible. I hope they get the same kind of money the second go round.
Also, the guy playing Kublai Khan is awesome.