Wow, thats all I can say, just...wow. JKR far surpassed herself with this book. Unlike previous books, there was very little down time in this one. From the moment the book starts, it is hard to find a stopping place. The book speeds along at a rapid pace, heroes fall, heroes rise, unexpected twist, deaths, and defeats. I did not like the ending too much, it seemed to rushed. I would have liked to have know a bit more after the fall of Voldemort, errrr He-who-must-not-be-named, but can understand why. At over 700 pages, it is a fairly long book, very well wrote, and did tie up most of the outstanding lines. Best line of the book goes to Mrs Weasley near the end, when she fights LeStrange.
I am hesitant to write too much, would hate to ruin it for somebody. Maybe in a few weeks, I will flesh it out a bit more.