I really liked the political feel of the book, it seem like this one was not so much about magic, but used the magical world as a metaphor for our culture more then any other book in the series. I was really happy that the big ending happened in Hagwarst and that Snape turned out to be a good guy. It was also really nice to find out that Nevile and Luna got to play important parts and become appreciated by everyone else without really changing their personality.
I think kmy favorite thing about this book is the team spirit - everyonehelps and though Harry gets to do the final act, the book doesn't just focuse on him all the time.
The thing I didn't like the most was that 19 years later chapter, it was cheesy and didn't really give any valuable info, I would have liked the bookk better without it.