As noted by more than one previous reviewer, it helps to follow the plot of 'The Deathly Hallows' if you’ve read the book, although the same could be said of many movies – particularly movie series (e.g. Lord of the Rings). That said, this is still an amazing piece of movie making, especially considering that it’s movie #7 of 8, spanning 10 years both in the story and the production … a most daunting and singular accomplishment all by itself.
The three principal actors (Radcliff, Watson & Grint) have grown tremendously in their craft over the years. When Harry and Hermione were dancing in the tent in the midst of their desperate pursuit, I couldn’t help flashing back to those cute kids in their first year at Hogwarts. As actors, they’ve grown to the point that I could feel the shared emotional support of their deep and abiding friendship, as well as an unacknowledged attraction that would never be pursued because they were each in love with another.
The two most touching scenes for me were at the beginning and ending of the movie -- and I have no doubts it was done purposely: Okay, so I’m not a manly-man, but I admit that I ‘teared up’ when Hermione ‘erased’ her past from her parent’s memory (but not her own, and that’s the most poignant part), and when Dobbie died in Harry’s arms. (Speaking of great 'actors', Dobbie stole my heart.)
In short, yes, I would unhesitatingly recommend this movie, but only if you’ve seen the preceding six films -- despite the incredible CGI effects, it would be meaningless to someone who hadn’t.