I can't say it was suspenseful, having read the books (multiple times) but at this point, I think most people have read the books too, and they go see the HP movies to see a visual intepretation of the stories. In this regard, the movie didn't disappoint.
The camping scenes drag a bit, but they did in the book too. However, the way the film brought to life exactly what I envisioned when I was reading the book was fantastic. I especially loved what the tent looked like on the ouside vs. the inside.
The movie goes deeper into the emotions of the main three characters than ever has been done before - and seeing them all getting angry with one another makes them much more realistic.