I think I am alone in not really caring for this two-parter. It was okay, and there were definitely some good moments (the memorial scene, the Doctor's turmoil to an extent). I didn't buy into the whole romance storyline- it was just too rushed, the characters didn't seem to have any real chemistry to me. While I did enjoy the scarecrows, I thought the other antagonists- the Family- were kind of lame. They just didn't seem all that menacing to me. I disliked strongly the whole "mother of mine", "father of mine", acknowledgements, and the performers kind of grated on me (I especially couldn't stand the constant sneering on the face of Son of Mine- made me think he had some kind of rictus, which if so, I don't want to sound like I'm making fun of it, but it was just distracting to me. Same thing happens anytime I see Meg Ryan in movies these days, with her ridiculously Collagened lips.)
I wish they'd have done more with the Tim story- there were a few too many plotlines going on for me to feel that there was any sense of satisfaction in any of them.
Like I said, though some good things. I liked the vengeful Doctor at the end.
Not sure I'm looking forward to the next episode. While I rather enjoyed last season's "non-Doctor" episode (Love and Monsters, was it?), this one looks kind of bland, but mostly I don't know that I like the notion of every season having a "non-Doctor" episode. As an occasional experiment it's fine, but not as a recurring event.