After watching this Dragon ball kai serie, I have just one thing to say :
What a waste!
Take dragon ball Z except we cut the long part repeating something like "Bukkorosu!" ten times, or 15 episodes to see Goku finally arriving at the end of the snake way and you get Dragon Ball kai...I'd like to say that but they changed one thing more the music and it's really bad :/
The previous music were great, the new ones are just not right.
except for the new opening, the animation is a copy-paste frome the original dragon ball Z serie.
To conclude, Dragon ball kai answer positive to all the codes of the shonen and in a great way. But I'm confuse, dragon ball kai cut the long part to keep the essential ( we can't really feel anything in the story is missing from the original) and that is great but the new music is ruining the anime :/