With its simple but high concept, this Worf episode is a fan favorite thanks to its many subtle variances and intentional inconsistencies, challenging the viewer to keep up with the story and its shifting details. Writer Brannon Braga's premise is perfect for a show this late in its life, because the story lends itself to playing off previous episodes, with its exploration of alternate results to past choices and twists of fortune. The script also takes advantage of the show's many years of building characters, with the plot necessitating more background players than usual. (In fact, with these advantages, it's easy to see why the writers decided to take the basic idea for this episode and modify it for the series finale.)
And hey, it's just plain cool to hear Wesley say, "Captain, we're receiving 285,000 hails."