I've enjoyed Dragon Ball Z for over a decade, along with everything else Dragon Ball and this is no exception. Dragon Ball Z Kai is enjoyable, and even though I enjoy (and dislike) some of the filler in DBZ, Kai is in no way to be classed as terrible for taking most of it out - some minor bits have been left in.
The dialogue has improved, I like Frieza's new voice actor and the original voice actors have improved slightly. Gohan's new voice actress I was fine with it at first, but it did start to annoy at times, now after a while, I have sort of got used to it again.
When it comes to the music, I prefer the Japanese version of: "Dragon Soul", "Yeah! Break! Care! Break!" and "Wings of the Heart" I really enjoy "Saiyan Blood" and "Only A Chilling Elegy." I enjoy all of the music in Kai even if Kenji Yamamoto "borrowed" it, I also enjoy Shunsuke Kikuchi and Bruce Faulconer's music so I don't really have an argument over music.
DBZ is there when I want to hide away for days - DBZK is there when I want to watch it quicker. Then I also have the option of Dragon Ball and Team Four Star ;3 It's Dragon Ball, I like it all, even GT.
It's not just for young children. The DVD's are uncut (there is blood, a little less blood than Z but added "swearing"), the television version is censored for a reason.
The Buu Saga, is on the way! I hope they keep the worms in, I guess they won't though :(
One thing I am annoyed about is that the UK will have to wait or may never get the Dragon Boxes of any of the series' or the movies. Unless bought from overseas at high cost.