A needlessly long runtime.
A conspicuously fake CGI airplane.
What else would you want from a Stephen King adaptation?
In all seriousness, I genuinely enjoy this '90s miniseries. Three hours long, yet an extremely interesting and mysterious story makes up for it. The acting is pretty awful (except for David Morse, he's actually not bad, compared to everyone else), and my God, the CGI is so ugly.
But, I enjoyed it nonetheless. Why? Because the story is just so good, and the terrible acting is so funny. I really like the score; it's like someone combined the scores from Twin Peaks and Halloween. And, the awful CGI has a certain charm to it. This miniseries is one of my guilty pleasures, and I won't apologize for it.