Joe Wright's camera work and Saoirse Ronan's performance were no disappointment. The visuals are absolutely incredible, from the opening scene where Hanna takes down a reindeer (I think?) to the ending in an overgrown, whimsical children's theme park. The initial scenes, aided by Ronan's amazing acting, provide what is needed to get the audience on the side of the underage killer--even after watching her commit brutal acts of (possibly unnecessary?) violence.
However--and it pains me to find myself nearly as snobby as the movie snob himself--the film begins to lose steam about halfway through. The plot becomes relatively predictable, with the only questions being how exactly it plays out. Meaning, who lives and who dies. But all the how's and why's are pretty well inferred.
Another issue, as the Snob himself pointed out, is that there are a few...let's say "ability" inconsistencies. Early action scenes are very Bourne-esque, with Hanna and her father taking down 2-8 armed and trained federal agents with minimal difficulty. However, when Hanna and her father's nemesis enlists the help of a German fetishist and his two scrawny skinhead goons, well, that's when the super-teen and her dad meet their match. While 8 agents don't pose a threat, man it's really hard and stressful to take down these German brawlers on motorbikes.
So, in sum, it was an amazing and visually exciting movie to watch, and I'd still recommend it to anyone who digs that sort of thing. I mean, I'd probably even watch it again. But, there are plot issues, and I can tell you David the Movie Snob will not be taking in a second viewing.