This discussion may contain spoilers!
Okay, I just finished it. Anyone else? :D
Overall I thought it was a good read, and a good ending to the series. Wasn't crazy about the epilogue and I thought the book would have done better ending on the last chapter instead, but what can you do. The part when Harry thinks he has to sacrifice himself had me bawling, and that's always an indiciation of a good book in my warped mind. :p
Also I'm disappointed that Sirius was really dead. All this time I thought he'd make a comeback. I am, however, glad that the magic mirror from Book Five played into this one, because I always thought that was an obnoxious red herring.