I gave DBZ Kai Season One a glowing review. My only "complaint" was that the original Kikuchi music did not align with the scenes as it did in the original series (plus, some of his tracks are not even used). The same holds true for Season Two. However, it is (for me) a minor issue, plus I actually like a lot of the music choices when not comparing the placement to how it was in the original series.
Season Two contains the bulk of my favorite DBZ saga, the Frieza Saga. Even with the original Funimation dubs, I considered the Frieza Saga to be my favorite. Let me say that, of course, most of the filler is cut, allowing the series to move much faster. However, it never feels too fast, and though I am nostalgic for the filler, I did not miss any of it while watching this. Also, I can honestly say that I will never look at the older English dubs the same way again because they cannot hold a candle to Kai's dub. The English dub of DBZ Kai is once again spectacular. Firstly, the script is much more manga accurate once again. Thankfully, there are no more cheesy one-liners from Goku or Frieza. Then, there is the actual acting itself. It is simply SUPERB. Chris Ayres is Frieza this time around, and his voice is exactly how I've always pictured Frieza sounding in my head, ever since I first saw him as a kid. He captures every aspect of the character perfectly, making him out to be an evil, powerful dictator as opposed to simply an upper-class school bully. This is the first time I have been genuinely terrified of Frieza. I mean, I grew up with Linda Young's Frieza, but it simply cannot compare to this one. Not only did her voice not match the character, but the script Funimation gave her was awful. After hearing Frieza's lines in DBZ Kai, I don't know how I ever put up with the original English dub (though, considering I have never read the manga or watched the show in Japanese, I guess I didn't know what I was missing). Everyone else is terrific as well. Chris Sabat does an AMAZING job as both Piccolo and Vegeta here (and of course, the script is much better for him as well). Once again, the cheesy lines are gone ("YES! YES! I CAN DO THIS! UGH!") and both characters are cooler than they have ever been (and I loved them both as a kid); plus, Sabat puts so much raw emotion into both. Krillin and Gohan are also voiced very well once again. This review would not be complete without me mentioning Sean Schemmel as Goku, especially since this is Goku's standout saga as he becomes the Legendary Super Saiyan. Again, gone are the sappy speeches ("Ally to Good! Nightmare to You!") and corny jokes. Rather than get a goofy, quippy superhero SSJ Goku, we get an angry, vengeful SSJ Goku ("I AM THE SUPER SAIYAN, SON GOKU!"; and "YOU WILL PAY FOR WHAT YOU'VE DONE!"). And I've always loved Sean as Goku (he is the first Goku I've known), but his acting here is the best he has EVER done as Goku. My word! You literally feel the anger and power with every word he speaks. You feel his sadness when Vegeta dies. I just can't express how great he is as Goku here.
Once again, the cleaned-up animation looks beautiful on Blu-Ray. The opening/ending credits and eyecatches are very cool, and the songs are very good as well. For me, this is now the definite way to watch the Frieza saga (in English, anyway). While I still can enjoy the old English dub, it really seems dated now that DBZ Kai exists. Whereas the original Funimation dub of DBZ made it a better-than-average cartoon, DBZ Kai makes it a truly enthralling, epic, almost cinematic experience. I have just ordered Season Three and I can't wait to watch it!