Just finished it! And I'm not gonna use spoiler tags, cause if you've got this far then you don't care about knowing!
I enjoyed it, more than OotP. It wasn't as infuriating as OotP, I just wanted to give Harry a slap and say 'SHADDUP!!'
I agree that Dumbledore knew he was going to die and that it was planned for Snape to kill him. I've just got this feeling that it isn't the last time he's going to be aiding Harry. Like he's going to make a Gandalf like come-back, or be an Obi-Wan like ghostly presence, whispering in Harry's ear.
I was shocked that he decided not to go back to school. I mean, he couldn't even get Snape with a spell, so I don't see how he can get Voldemort without more training.