I have to say, I like Natsuhi a great deal. While she showed just a little bit of doubt to the old man, she's a strong character, and I'm glad to see she didn't get taken out with the others. She really commanded the scene of the slaughter at the shed. Her hesitation to answer the old man seemed very telling, but what of, it is too soon to say. It would be easy to suspect her now, given she might have a grudge against the family.
What I don't get is why she alone is not allowed to wear the one-winged eagle. They said in the first episode that it was because she married in and was just a "borrowed womb." Which would make sense...except that all the other wives, all the husbands, and even all the servants wear the one-winged eagle.
I did smile at what Maria was watching on television when she didn't tag along with the others. It was Higurashi