By and large, this is a passable two-parter - not great, but good enough. Probably in the region of 6 out of 10. What lets it down isn't really the dialogue, but the sheer mess of it all.
Is it the Flesh or the Gangers that are the victim here? The script keeps changing its mind about this. We're told several times about the Flesh's grievances, but it's the Gangers and their struggle for equality with the humans whose minds they share that we're invited to sympathise with. Are they actually perfect copies of their originals, or are they just autonomous parts of a Flesh gestalt? Do all their assertions of ownership over their duplicate memories, their disagreements and in-fighting actually mean anything? I think the whole business about the Flesh being self-aware and suffering in its own right is a dead end in plot terms - the Gangers are quite definitely individuals by the end, and all the talk of a Ganger revolution suggests a population of individuals that has to be organised - but so much is made of it that it muddies the whole issue.
Speaking of muddying, how about that final scene? So the writer spends ninety minutes telling us that clones made out of chip shop batter are real people too and deserve our courtesy and compassion, at the end of which the Doctor turns round and shoots one with his sonic
In case it wasn't already nauseatingly obvious, I'm not loving this series as much as previous series. More on this in due course.
Much of The Almost People is given over to Wouldn't It Look Cool If scenes that don't make a lick of sense - all the eyes gummed to the wall, the big pile of fused melty Gangers in the basement, and of course the lumbering Jennifer-beast. Jennifer's snakey-neck moment in The Rebel Flesh should also be mentioned. The Ganger Doctor's fan-servicing blast of previous Doctor impressions, possibly. These all have the feel of images that Matthew Graham started with, tried to fit a story around and couldn't bear to lose in the final draft - they don't add a hell of a lot to the story.
I'd be interested to know if acid actually is or can be produced by mining. I freely admit that I know nothing about this, but I always imagined it was synthesised in labs. Any passing scientists reading this, please feel free to comment.
What else? It's easy not to notice in hindsight, once the Doctor switcheroo has been revealed, that we actually saw the real Doctor roughing Amy up in a corridor. In his defence, he had just found out about his death (or at least, he'd found out what Amy thought about it). The business of Amy not trusting (what she believes to be) the Ganger Doctor on principle is laboured well beyond necessity. On the other hand, I felt that the handover of Dad duties from the Scots guy to his Ganger (and the way the Doctor used this as leverage in his relations with the Gangers) was handled very nicely. But just how did the Doctor know to arrange that phone call so far in advance?