I second this. Of all the TV shows I've watched over the years, this is one is easily the one I've spent the most time thinking about, even long after I finished watching it.

While it has it's ebs and flows, it never got bad or dull for me.

And it contains a ton of details you might think is for dramatic effect or cinematography, but often it turned out to be based on actual practices, historic fact or just have a practical purpose for the characters.