I loved this movie. Vic Mignogna surpassed Shoko Nakagawa for sure. Kyurem's voice was okay, however the attempts at growls and such were horrible. The sacred swordsmen were okay, except for the fact that they made Terrakion sound like a muppet. As always I just couldn't stand the other English voices. TPCI really likes to make 4kids sound good.
All in all, I'd say it was about average. TCPI still is pretty second rate and I believe that it was an insult to Vic to have had him work for such a company. Vic's talent is something that they don't deserve to work with. If you wonder why I hate them so much, its because they promised to stay true to the original Japanese version of the anime, but they failed. Not to mention how they make the anime sound like a bad fandub.
Lastly, what is up with the title change? I like the original title. "Kyurem VS. the sacred swordsmen Keldeo".