Finished!
Well, duh. Snape doing it all for the good guys is probably the most obvious plot "twist" in the history of fake and obvious plot twists. When Potter found the sword in the pond, all I could think was "thx for the tip, snape." When Harry stuck the memories in the pensieve, it was like the end of Seven where Brad Pitt is yelling "What's in the box? What's in the box?" and everybody is like "Shut up! It's Gweneth Paltrow's head!"
I believe I actually dozed off during the chapter where Potter views all Snape's memories. Could we have had a single memory thrown in that wasn't, you know, (I hate to keep using this word, but you know . . . ) obvious? But really, Rowling? That's all the send-off you're going to give to the most (only?) interesting character you created? Really? Really? Snape got bit in the neck by the snake and died and I turned the pages back to make sure I hadn't missed anything.
And I even told my husband before we left the house for the big line-experience: "Well, the last book ended on a pretty serious note, so at least I can be confident that the book won't begin with the obligatory 'Harry spends the summer at the Dursley home and it sucks' sequence." But no, Rowling couldn't bear to begin a book without that.
Not a spoiler: Rowling still can't write for shit.