To be perfectly frank, Lucky Star, for me at least, was actually pretty good. A lot of the show is basically hit-and-miss, and more or less, about half was super funny, while the rest was… not at all. The parts I particularly enjoyed were when: Konata eats the pastry, along with much of the food-talk; when Konata tells Miyuki about her moe points for being clumsy and a meganekko (I’m actually not sure on this part); the fighting game parody; and the entire Lucky Channel section.
I can understand where this hate is coming from though; Kyoto Animation, has, time and time again, delivered incredible production quality, great direction, etc. Thanks to that, the bar for Lucky Star was raised incredibly high. were This episode, on the other hand, has seemed to betray those expectations. Background characters and the like are barely animated (they’re basically gray silhouettes) and it’s all talking and stuff. Not only that, they throw you another catchy dance and song, and as Omni said, “It makes me think that they’re intentionally trying to create another Hare Hare Yukai style sensation.” I kinda agree with this, but then we need more anime dances anyway.
On the other end of the spectrum, we’ve got jaalin and Hung‘s point of view. Basically, since the humor is 4koma humor, which is, as jaalin puts it, “…more about an acute amusement of the subtle nature.” In this sense, the humor is a lot more like AzuDai stuff, and well, some people just aren’t into that sorta thing. Also, the stuff they talked about that you understood is just a lot funnier that way. Like when they talked about why the maids in the maid cafes called you “Goshujin-sama” and Konata said it was because they did that too in eroges and galges. And then they thought that Konata played those kinds of things.
Overall, I’d have to say that while Lucky Star isn’t the most budget-busting thing KyoAni’s ever created, nor is it one of their best (there’s not a lot to choose from anyway, compared to other studios), I will say that it one of the shows that at least deserves a second look. Who knows, you might end up liking it after.
-edited because I reworded a sentence.
-edit #2: It’s getting unbelievably popular now; people here, here, here, here, here, here, here and here are all talking about it, and the difference is quite noticeable in AnimeNano too. I mean, Lucky Star becoming more blogged about than Geass and Nanoha StrikerS?! UNTHINKABLE. Quite notably, almost all of them give a lot of focus on the OP dance, which makes complete sense.