After I watched the first episode, I can say that this could look very close to the original series.

The first episode didn't give us an epic opening, as some of the reviewers would have liked, and that's why they give a bad rating

But you have to wait for at least the first 5 episodes to make a good judgement.

The casting may not be as strong as in GOT, but hey, some of them will become real stars after the first season! I think they should be given a chance.