So here is my take..

I really liked the last episode! pacing was much better, tied up loose ends nicely and nothing to spectacular which you do not need on the last episode (that stuff should rightly come before)

dialogue and acting and characters were all true to themselves.

However I can not believe we have got here in 5 episodes... 2 seasons would have been perfect but even if they had just done the extra 3 episodes HBO offered it could have saved a lot of the development issues