So I'm really late on this, but I just saw the movie.
Eh, thought it was ok. I thought a lot of the jokes fell flat, but some were nice hits. Punching knives so hard her highlights came out was fairly hysterical. Quixotically, I thought the movies succeeded best when taken as an action film. The fight scenes were far above the quality of those seen in actual action movies.
I think Usagi's criticism was kind of on the mark, or at least close to it.
I guess my biggest problem with this kind of thing is that it caters to this culture of people who fit in with each other because they "don't fit in." Like, that's their bond; they don't fit in. It contradicts itself because they fit in to their own group. Glorifying geek "culture" as this trendy thing is annoying as hell. It's geeky because
it's not trendy. Bah!
It's not just Michael Cera playing the same character that gets tiring, but seeing the same types of personalities and styles rehashed again. I'm not sure what the proper term for the demographic is, but it's the same each time. I really liked Juno when I first saw it because it explored these personality set of people that I've known and hung out with but never seen showcased or addressed in media. Then they did it again and again and it stopped being unique and interesting. It might even be a genre now.