Not a great story but a fun watch. Plot was a little bit boring and unrealistic but the silly comedy scenes cover up for that part. Frankly speaking, best parts of this series were the Starting and Ending Themes. I really loved the Sagiri's Character and I would really like to see a sequel for this anime but with a better story, LOL!!!
I'd hesitate to call this a "bad" anime. It does have some genuinely funny moments, and the characters are very smoothly animated (some of them, at least—rumor has it Sagiri had her own key animator, separate from the other characters). But this show is not good, by any stretch of the imagination. (OK, I'm also just a sucker for ClariS theme songs. You'd think Qualidea Code would have taught me not to blindly follow every show ClariS grace with a song, but I guess you'd be wrong.)
The majority of the visual content is fanservice. The characters and their "dreams" are just puppets to set up situations to produce said fanservice. There's no plot to speak of, just a static premise. I guess Sagiri develops a bit as a character, if you can call her one (she's a big blob of moe kawaii imouto tropes, at best, I'd say), but nobody else does. And I am 100% serious about that "puppet" comment—it often seems like the characters are literally saying whatever is necessary to set up the fanservice du jour, regardless of how it relates to (or contradicts) their previously stated goals.
Am I foolish for wanting character development—or believable characters—from a show with "ero" in the title? Probably. But I know the author of this story can do characters. One need only look at Ore no Imouto ga Konnani Kawaii Wake ga Nai to know that. (The dead giveaway? The main cast of Oreimo characters have a cameo in this show.) As ridiculous as Kirino and Kyousuke's relationship was, there was measurable development (regardless of the bullshit ending to S2). It also helps that that show had something to say about otaku culture.
Eromanga-sensei is just pandering. I don't even like most of these tropes…