Also, my complaint about the teaser of the episode is that the deflector dish payoff was a yawner. The stupid sparkly tinkerbell beam effect as used created no tension and made the Enterprise look wimpy. When they came back and Riker says, "Fire", Worf shoulda hit a switch and we should've seen the Enterprise from behind and this TITANIC blast slam into the Borg ship and BOOM, utterly obscure it.
I disagree. The teaser in Part II was oozing with all sorts of tension. I certainly didn't see the deflector discharge failing.
Part of what makes Part II so impressive to me is the fact that Michael Piller wrote this months later with very little idea how he was going to wrap up Part I. You really couldn’t tell that from watching this.
The show amazingly managed to maintain the momentum built up three months earlier without skipping a beat picking up right where it left off.
The teaser needed to resolve the cliffhanger regarding what would happen when the deflector fired on the cube. Would the cube be destroyed? Would Riker have to live with knowing he made the call that resulted in his captain’s death but could take some solace in knowing it saved the Quadrant from the Borg threat? Would the episode be over before it even started? What happens? Nothing.
To me that was a truly WTF! moment. It turns out that the Borg not only assimilated Picard’s body but all of the knowledge he possessed as well. It might have been just me but I never suspected, even for a second, that they would keep him alive by having the weapon fail to work due to Picard's knowledge that was assimilated by the Collective mind. I didn’t see this coming although in hindsight I really should have and it is the scene that sets up very nicely what horror is yet to come. The seeds were laid in Part I so subtlely that I wonder if Michael even knew that they were there to exploit until he sat down to write the second half.
Some writers plan ahead and intentionally go out of their way to put in place plot points in Part I that they know they’ll use to get out of a seemingly impossible situation in Part II therefore allowing for an exit from the corner they backed themselves into storywise. I
never got that feeling here. This seemed more of an instance of a good writer being creative and using organically what was already there rather than setting up things in a very contrived manner. I just loved the brilliant simplicity of how Michael resolved this. I think this aspect tends to get overlooked by a lot of fans.
And then to cap the teaser off and ratchet the tension we have the revelation that the crew's leader who knows them better than they know themselves is now is being accessed by the Hive Mind. Very ominous.