I found the first 6 seasons amazing. then I didn't like the seventh and eighth.
in particular the last season, too synthetic, events lasting 8 seasons, resolved in a moment without giving explanations. jon snow who kills daenerys with a single sentence and then is exiled, practically returns from where he started at the beginning of the first season while he should have been the king.
Ruined so many character development that had been built up for the previous seasons... rushed job so d&d could go for their big payday and they already fucked up one of their jobs afterwards..