Speed is what I go for. Accurate translations and thorough notes and explaining references to Japanese cultur and plays-on-words are needed, but I feel Bleach-Society does all of this pretty damn well.

I like Lunar and watched their episodes until about 30. But once I caught up to being on a weekly basis I had to go to Bleach-Society. I hate waiting. And on East Coast sometimes the difference in release times between Lunar and Society are enough for me not to get the episode until a full day, A FULL DAY LATER!!! I can't wait THAT long for better translation. And as far as quality, I don't see any glaring flaws in Society's episodes, so I go with that.