So far, I watched some episode of DBZ kai, and it's still good.
Sure, it has less drama, but the pacing is more fast, and less annoying. At least we don't have a silly pointless half episode about a transformed Ginyu and Bulma being buddy, only to have Bulma dodge the attack and nothing happened.
I was a fan of the original, and still like it, but I have throwed my nostalgia goggles a long time ago and I can see the flaw of he original now.
So Kai for the win !