Starting where Higurashi no Naku Koro ni left, Kai offers the answers for all the questions and things that the original opened the animation its way better than the first season, characters are the same with one very important adition, after watching all those question arcs on the previous season its very nice to see why were all those things happening, and why the story was starting again over and over with diferent results each time.
It has some very nice comic moments as well, what seems to be almost completley gone its the violence and gore that the previous season offered. Even with the questions answered on a niceley way i don't give the story over 8 since at my modest point of view, the final is weak and not at the level of what the rest of the seasons are. For me looks more like a pokemon episode where Ash just kicks team rocket ass again.
At the final point its a great anime, like i said before, it has plenty of nice twists, and some good action moments, will defineatly keep anyone who likes this genre intrigued till the end. If you enjoyed the first season you will enjoy this as well.