I had high hopes for the series finale and unfortunately it somewhat disappointed. I won't spoil it for anyone, even though I desperately want to. That being said, the best thing I can say about it is that there is no shortage of shock and awe.
I have been watching since the beginning and the first three seasons were commanding. Even part one of season four set the conclusion up for greatness. The latter half and inevitable ending, however, were only just acceptable. This seems to be a common trend amongst shows that become too complicated for their own good; it's often impossible to close the loop holes efficiently. Don't get me wrong, I'm not trying to discredit it because I am such a loyal fan, but I think anyone would agree that the showrunners could have done a better job. Too many questions were left unanswered! It all boils down to high expectations for a high caliber experience that weren't met, although we do eventually have to make peace with it.
The flipside is that I don't think there will ever be another show in the future that can touch Ozark in its greatness, so that definitely proves its prowess. Sad to see it go without the bang it so richly deserved.