Finally watched this series. And I'm soooo disappointed.
Although there was some trying with the plot, it ended up being pretty generic. The same goes with the characters. Haruhi was interesting in the first 2 episodes. When she changed to her hyperenergetic self, she became kinda boring and annoying. Kyon was bored even in the series, so was the character.
The mixed order of the episodes usually is a good thing, since it's usually a sign of acid-like, twisted and interesting story. But Haruhi's story was so simple that mixing the episode order was probably the best try to save the failed script. Well it didn't work.
Now I have to shed a tear every time I see this series on some Top100 anime lists.