I like that it's Rory who is the most sympathetic to the Gangers, after the Doctor. They haven't made a direct mention of it in the episode, but we know he remembers his 2000 years as a Nestene duplicate, being Rory and not Rory at the same time. He understands how the Gangers feel, even if he isn't entirely comfortable with them.

Also, he's a nurse. You have to have a higher than average amount of empathy to go into that profession.

I REALLY love Rory as a character-- I'm fonder of him than of Amy, truth be told. Though without Amy he'd not be as strong a character.

And, really, the duplicate Doctor-- I was expecting that from the minute he put his hand in the sludge!

Can't wait 'till next week!