Maybe it's because I'm hormonal, but I found the book quite emotionally engaging. As a matter of fact, I cried though darn near the whole thing. I haven't felt this sad about something coming to an end since Buffy. :sigh:
Thoughts:
SPOILER :
The isolation of the trio was, I felt, necessary. It forced them to explore their relationships to each other. Yes, I nearly kicked Ron when he left, but I knew he'd come back - and come back he did. Hermione swearing - there's something I never thought I'd read.
I feel let down by Dumbledore. My faith in him has been completely shattered. I'm glad Harry could forgive him because I sure as hell can't. I'm totally disillusioned.
The little bit of Lupin that we got, I didnt' like at all.
I agree that Harry should have had at least some sort of reaction to the revelation that Snape was in love with Lily - revulsion, shock, something. I know he was emotionally numb at that point, and the whole thing about being a sacrificial lamb was overshadowing everything else, but c'mon!
About the epilogue. The only thing I can reason why there wasn't more about everyone else is that these books are written limited third person. It's always been through Harry's senses that we've learned things. What Harry sees, what Harry hears, what Harry knows. Still, that's not much of an excuse for not wrapping up the rest of the character's stories. Oh, and the kids' names were just horrible!