I watched the first two episodes of the last season on a promotion CD.
It's going down hill.
Every season, minor characters from previous seasons disappear without in-story explanation, making their contributions meaningless. Meanwhile, new minor characters are introduced. The new minor characters of this season don't do anything for me. Some of the acting even seems a bit wooden.
The major characters are also losing their luster. King Henry, the Duke of Suffolk, the Ambassador from the Holy Roman Empire - as they age I just don't feel like I care anymore.
The King's youthful queen brings a certain playful sexuality to the series, but of course it won't be long before she is executed. I think the star of the show so far is the Princess Mary and how she is maturing.
But in the sum of things ... meh.