The lowlight came three times. Four if you count the whole Harry is sort of, kind of dead, chapter.
As horrible as it might seem, I wanted Hagrid to die. And Rowling kept teasing me. Hagrid fell of his flying motorcycle -- and survived. He jumped into a pool of bloodthirsty giant spiders -- and survived. He pounced on a group of death eaters bent on killing Harry Potter -- and survived yet again. At one point, it was hard to decipher if he actually survived the spider attack -- and to be honest, I didn't want him to -- but it became clear that he was still alive when he showed to try and save Harry from the death eaters.
It seemed to me Rowling has been trying to kill off Hagrid for the past three books. It almost appears that she starts the process, then thinks twice about it and brings Hagrid back from certain death. He is a very likable character, but I would have rather seen him die than Lupin or Tonks. That was tough. And now there is another orphan wizard running around, who may or may not be a werewolf and has the ability to change his appearance at will. Can you say Teddy Lupin and the Silver Lining?
But the thing that bothered me most about the Deathly Hallows was the death of Harry Potter. That was a little cheap. Either kill Harry or let him live. There were a number of different ways Rowling could have presented that little discussion between Dumbledore and Harry. Even the conversation with the portrait at the end would have sufficed. But having Harry linger between death and life, I expected more from Rowling. It wasn't very imaginative and far from necessary. Although it did create great tension when he came back from "the dead" to face Voldemort for the final time.
It's funny how Harry turned out to be a pawn in all this -- unwittingly manipulatied by Dumbledore and Snape all this time. It was a very unusual way to tell the story, but an incredibly effective way.