I really like this class... I find it to be the salvation of the monk that isn't:

"Unarmed Swordsage go go go."

However, I did have a problem with the Dance of the Elements. In many of the games I've been apart of, skill-monkey's win, and having a flat enhancement to your Jump, Tumble and Balance that's larger then most people will ever see seems a little ridiculous. Pumping full skill points into it you would be able to do epic skill uses at level 9. Seems a little too powerful.