I dislike the OP. The animation's interesting, and the music's not horrible, but it's kind of boring and doesn't really fit the show at all. It's not emphasizing the depressing
or the crazy, which are pretty much the main themes of the show. I guess it's emphasizing the feeling of alienation through the faceless people running by, but it's too upbeat to really capture that. The ED on the other hand is perfect.
I'm wondering who that purple guy is though. Is he the mascot for the NHK TV station or something? Or a fake mascot for the anime? Or just nothing in particular?
Spoiler for comparison to manga:
This probably isn't the best comparison to make, considering that they're both different interpretations of the novel, but I've only read the manga, so whatever...
First, they toned down some craziness, and therefore some humor, while re-emphasizing his hikkikomori-ness. In the manga, he's really kind of social if you think about it. A slightly more serious take?
Second, they cut out the casual drug use. Is this censorship, or trying to keep focus on his main problem instead of having the audience see him as a drug-addict or something? I guess it'll become clear when they introduce his Sempai, for obvious reasons.
Third, they took out a lot of Misaki's emotional reactions. She looks kind of... calm, instead of overly playful. One might be tempted to believe that she knows what she's doing! I guess we'll have to see where her character goes from here. Plus they made her look younger, but I think that was mostly her dress in her first appearence.
My favorite show of the season so far.