I actually quite liked issue six, I thought it was the best written of the issues so far, and there was even an improvement on the painted art work. This is the first time in the entire book where Amy looked liked Karen instead of a completely different person. Two more issues left to resolve all this build up. Should be interesting to see how they resolve this and put everything back to "normal". I sense a timey wimey reset button like in "Star Trek/Legion of Superheroes".
I started to write a review of this for my blog on Wednesday, but I didn't finish it because work on my NaNoWriMo outline was more important.
One thing from that unpublished review was about the conclusion of the storyline as a whole. Here's what I wrote:
It's now painfully obvious how this story will end. In issue #7, the Doctor will get the information he needs from the Borg in the past, the Enterprise will catch up with the Cyberfleet, the Borg will be literally rebooted to remove any trace of the Cyber contagion, and the Enterprise will use the gold weapon to destroy the Cybermen. But wait! We will learn that the Borg Conduit lied, and the issue will end with the Borg turning on our heroes. Then, in issue #8, the Doctor will defeat the Borg, either because of something he did when he rebooted the Borg or by using the green device from all the way back in the first issue. With the Borg threat eliminated, the Doctor will ask Picard if he wants to travel on the TARDIS (because that kind of thing happens) but Picard declines even though he's tempted. The Doctor leaves, and the Enterprise goes to Delta IV to assist in the rebuilding of the planet after the Borg attack. The end.
In short, I'm not seeing a reset button coming. Especially since IDW has said they want to do another crossover.