Ok, I assume that if you are still reading this you either 1) have finished H.P. and the Deathly Hallows 2) don't care if you find out what happens before you finish it or 3) don't have any intention of reading it. If you haven't finished it, and don't want to know what happens, then please, quit reading now
Still here? Ok, here is my take on the book. It was good, not great, but good. Personally, I think that standing alone, as just another book, it would have been a medicore seller at best. Because it was the last book in long series, many of us read it to see what happened to our "friends", but IMO, if you didn't already "know" the characters, the book was long, the plot lines were a bit mixed up (I still don't really "get" why the deathly hallows plot was added to the search for the horcruxes and the battle between HP and Voldemort). I couldn't get all upset about the characters she killed off--I'm sorry Fred (or was in George) died, and I'm sure his family was too, but it was kind of like the difference in reading the obits in the paper and noticing someone I used to work with, or that my parents knew, versus hearing that a close friend or relative died. None of those who died were main characters or made to be close enough to the main characters (like Sirus) that I felt any real sense of loss -- with the possible exception of Dobby. I figured before I got the book that Harry would win--the only question in my mind was whether he'd have to give his life in order to do so, and while I'm glad he didn't (and I think it is more appropriate for a children's book that he did live) somehow I think the whole book was just a little too pat.
There is a part of me that likes series fiction--those books where you meet the same characters over and over again. It's like popping into the life of old friends. I read Trixie Belden, Cherry Ames, Star Trek novels and more. The trouble with these types of books is that they get formulatic quickly and you don't know any more about the characters after reading ten books than you do after reading one. Also, the plot line usually is predictable--the characters have to win so they can come back for the next book. I think the first few HP books avoided this but I'm not so quick to say that about the last couple of books. I read somewhere that the Epilogue leaves open the possibility of following the younger generation off to Hogwarts. I think if JK Rowling wants to make even more money, that's a great idea; however, if she is interested in writing great books, I think she needs to stop, take a break, and then invent a new world and some truly new characters (I'm afraid that the second generation would have a brave loyal leader like Harry, a brainy friend and true follower engaged in a battle against the evil of the day). We'll see.