The Dragon Ball series has always been my favourite anime and Kai is no exception, if you liked Z but didn't like most of the fillers then you're going to love Kai. It has little to no fillers HD quality and probably improved on the voices, I also like the new "Dragon Soul" song at the start too! I do have some problems with Kai though one being that everyone in this show just loves to kinda break the fourth-wall, the show is literally riddled with exposition and it kinda of gets annoying this is the same in Z too, but I kinda didn't care at the same time because the show is so good, and lastly Gohan's character development is kind of choppy in Kai not so much in Z though, Z's version of Gohan's development was much better due to the fillers, but I get why they didn't because they wanted to avoid the fillers for Kai. Kai is also much shorter than Z too, the Frieza saga in Z ends at Episode 107, while Kai ends at episode 52 due to the lack of filler, but I think it is a good thing considering the fight between Goku and Frieza last for 3 hours in Z. Overall I love this show if you're someone who has never seen Z and want to see a version most accurate to the manga then watch Kai you'll love it.