Seiyuu Aya Hirano, the voice behind Suzumiya Haruhi, has made some comments of the Endless Eight arc in one of her radio appearances.

She apologised for the Endless Eight episodes and also thanked the viewers for putting up with it.

The comments were made on one of her radio appearances:

For us seiyuu the pressure was intense.

When we first met to receive the plans for it and learn which books we would be doing, like we did for the first season, we heard we would be doing Bamboo Rhapsody and thought it was very appropriate.

Then we learnt the second till ninth would all be Endless Eight, we were like what? Eh? Eh? Eh?

We didn’t really get it when we were told we were doing the same story eight times with just differences in delivery.

…

I think this was more awful for the people watching than the ones performing it, I’m really grateful to everyone for watching it all for two months!

Thank goodness we finally got away from it.

…

It doesn’t matter how many times I’m told to do it, I don’t want to do it anymore, enough already, enough! I can’t do it more than 8 times, that’s the limit!

Well am I glad I got over that arc. I never want to touch those episodes again -_-.

Source: Yunakiti Blog via SankakkuComplex Image Konachan