So much of this anime repeats, partly because of how the original series was written and partly because of how it got uploaded. So here is my download guide. The episodes worth downloading are:
1-2
9-14
25-28

Skip 3-8, they are a repeat of episode 2 with some wardrobe changes. Episode 9 is also a repeat of episode 2, but there is a different (though predictable) resolution at the end.

Skip 15-24. As far as I can tell, episodes 15-24 are a repeat of the first 14 epsiodes. It gets confusing and hard to tell, given that the anime makers have built 8 repeating episodes into the first 14 episodes.

When we finally break free from the infinite 8, we get into an annoying story arc where Haruhi exhibits increasingly mentally and physically abusive behavior toward poor Asahina San. One has to endure the frustration of Haruhi getting away with it repeatedly like a spoiled brat, and with constant, annoying whining sounds coming out of Asahina.

Since I made it to episode 25, I shall finish, though it looks like 26 at least partly repeats 25.

Paired down to 12 episodes, this is a manageable watch. But I must say that I seriously hate Haruhi now. (show less)