IMO the last book was very good indeed, but I had hoped, that the important characters who were killed (like Lupin, Fred or Dobby) was better described. All of the deaths were so short made. Only just said: .... died! It sounds a bit as if there was no defence of the ones who were killed. I though she should have described a bit more.
The end (19 years later) was a bit strange for me.
Overall I think the 4th, 5th and 6th book were the greatest. They had lots of suspense; this last one was not with that much suspense I had expected.
That Snape was good in the end was a really nice idea. I think it was a good piece of Occlumency he uses for himself not to let the Dark Lord into his "real" mind and thoughts.
-Aredhel