Looks like it'll be great from the little I've seen of it.
So, the voice cast. If you could survive the jarring Pokemon and DBZ English voice cast switches, this is pretty seamless and easy to adjust to.
Omi and Ping Pong are both voiced by Tara Strong, as excellently as always.
Raimundo, Clay, and Kimiko all got pretty good replacements. A bit forced and too low at points, but they're getting better at their roles.
Dojo's and Wuya's replacements are excellent. Just off and on at times, but definitely the closest to the originals.
Jack's started off pretty crappy, but he's getting much better, and was good in XC003. He just needs to make his pitch higher for Jack, and get the girly squeals down!
Master Fung and Chase Young's replacements are really very different from the originals. Pretty average, and not the best, but they're tolerable.
Ping Pong is pretty awesome and an awesome addition to the team. Came in at episode two: episodes two and three were awesome!
Dojo's new design...is going to take some time to get used to.
So, in short, the intro is great, the animation is very good, the voice cast is overall pretty good but will take time to adjust to, as will Dojo's new design, and the show itself is looking very good.