Many developments here seem entirely random.
Memory Alpha has a short summary here.
At this point in the "magnum opus," I have just a few comments:
- SABR Matt is right: The revelation that Ezri loves Bashir is a bolt from the blue. We've seen those two characters communicate on friendly terms several times, but there's been no hint of any romantic attraction. Fail, writers. Fail.
- Also, a nitpick: The writers need to get up to date on their psychology. From what I understand, psychoanalysis has been out of favor for quite some time, and cognitive-behavioral therapy is on the rise. Though it's not impossible that people will go back to Freud at some point in the future, I somehow doubt that we will still believe in dream analysis when it comes to discovering our inner emotional states. Plus, Ezri's dream was ridiculously obvious.
- The Breen? Really? I must've missed the part in which the Breen were highlighted as a critical power in the quadrant. In all seriousness, the Dominion's new alliance would've been a much bigger shock if it had been forged with a more familiar race. What do we know about the Breen? Not much. And does the name "Breen" strike fear in the hearts of the viewers? No.
- You would think Winn would recognize Dukat's voice. After all, it is quite distinctive. Additionally, I do think pushing the Winn/"Anjohl" relationship into sexual territory is going just a tad too far. Plenty of evil can be accomplished without adding that little wrinkle.
- On Sisko's disobeying the Prophets, I'd just like to point out, for the record, that Sarah turns out to be right. At the end of our sprawling tale, Kasidy is quasi-widowed. Indeed, Sisko and Kasidy are never given the opportunity to truly enjoy their marriage. And that's why I'm glad that Kira is at their slap-dash wedding ceremony looking properly grim.
The pacing issues really start to show at this point. More episodes needed to be devoted to explaining the Breen -- and the writers should've spent more time building chemistry between Ezri and Bashir.
I perceived no huge mistakes in the performances, however.
And I'd also like to add one point for the writers' acknowledging - through Kira - the folly of ignoring the divine.