That was probably the best moment in the entire series. Goku going Super Saiyan was just... #Kreygasm
Had the series actually ended at Frieza, I don't think ANYONE could be upset, because it would've been an amazing thing.
As far as Kai goes, I'm actually a bigger fan of Kai than I am the old Funi dub. Mainly because, now that I reflect on it, the music was probably the only thing that kept that dub from being downright bad. It was a bunch of newcomer VAs coming in...Kai pretty much is a lot of those same VAs practically taking the characters into their own styles much better, and even some much-needed changes in the cast (If you say Nadolny is better than Clinkenbeard, then you must think kids between ages 9-12 should sound like they've been chain smoking since birth LOL...same with Frieza's change).