This is exactly what I wanted when I got into this hobby. Each game has told a different story. Very cinematic. There's such incredible variety (especially with the expansion) that I doubt my enthusiasm for it will ever wane.
Long game, though it doesn't feel like it because I'm invested in it for its duration. Still, it probably won't be played as often as I'd like because of the length. Having said that, I'll probably still want to play it 20 years from now, so I'm sure I'll get my money's worth and more over the years.
It can be easy to get lost in the details and miss some minor actions, but that seems to be less of a problem the more I play it.
Also, the victory conditions are relatively weak in terms of theme.
I've been playing this game since first edition and it has been a joy to watch it evolve and mature into what i consider the current pinnacle of board games. With the addition of the shattered empire expansion this game became top dog in my books, the depth of strategy and game play variance as well as the length of the game(long is not bad) make for the most epic experience you can have with a board game.