There's no way HOTD could get so many reviews and especially on single episodes. The reviews of HBO shows always get distorted, 'cause HBO sets only one episode online in a week, so the reviews stack. Which means one person writes one review per episode.

But besides that: The show's story really started in episode 6. Which is too late. The CGI is ok. But CGI isn't everything. Show's have to start to build their story in first episodes. And this show failed with that. HOTD messes everything up with time jumps and always changing characters. Some characters are great but most are poorly written. 1/10.