It's better than Season 8, which is of course just about the lowest bar in existence, but worth noting when talking GoT.

The plot was kind of just a borderline uninteresting version of Downton Abbey with way more blood and incest, but the characters felt correct for the world and the acting and production was on point. Definitely worth a watch, but just don't expect it to be anything on the level of Seasons 1-4 of the original show.