The humor in this show is different from what we usually see, it's more based on that "Haha, I know that feeling" type of jokes, and situations that involves already knowing the characters, because if you don't know their personality, about 70% of the jokes won't work.
Know those jokes on a stand-up comedy show? It's kinda like that.
Now, the characters, as I mentioned, each has their unique traits of personality and are as relatable as adorable, but that doesn't mean you never saw characters like them in any anime ever, or that you'll necessarily like all of them. But still, they're very well done, and honestly, Konata is one of the best anime characters I've ever seen. In general, they all develop a really good relationship with who's watching.
Another thing I'd like to point out is that most of my friends dropped this show on episode 1 (actually, most didn't even FINISHED episode 1), I understand why but please, stay and watch at least 3 or 5 episodes, because seriously, it might take some time to you to get used to this show. It happened to me, I was kinda bored on episode 1, but at the end I laughed, and some days later (I kinda forgot about this show actually) I got back and watched episode 2 to episode 5, and I started laughing more frequently and getting used to the humor, and remember I mentioned that the character's personalities are important in this show? Yeah, it takes some time to you to "know" them better, that's part of why you need to watch more than one or two episodes.
Well, on the technical part I'm not very specialist, except by the sound, and man, it's wonderful. Voice acting is great and BGM is really great.
About the art, I don't know much about this to judge, but I love it, character design is wonderful and expression faces are standout.
On story, there's very little, but there's some traits (as Konata and her family, for example) that I love, but mostly, it's normal stories, you won't see other worldly events or plot twists, this show is more like meeting friends and interacting with them. You know that random conversation that friends have sometimes? Yeah, that kind of thing.
And about enjoyment, I agree that sometimes it can get a bit too slow, so I don't recommend you give it a first or second chance when you're sleepy.
