I couldn't really get into it. Thea's father was never portrayed sympathetically, although it's possible there's just a cultural gap.
It was interesting to get into mind of someone with Asperger's syndrome.
The ending makes no sense to me. If Thea's brother is supposed to have the same syndrome she does, why would he even notice that doctors aren't looking their patients in the eye? I would think he'd miss that social cue entirely.
The other thing that bothered me is that Thea needs into medical records that are stored inside a system her brother built. And it never once occurs to her (or anyone else) to ask him if he had a way in the system? Sure, he would have lied about it or falsified the data but they wouldn't know that. It really bothered me.