Zen Sphere is all but useless. It ticks for 5k and detonates for 14k. Why you would use this is beyond my knowledge.
Chi Burst is the identical spell except you cannot stockpile chi and spam it for burst healing. This part really sucks.
So this leaves Chi Wave as really one of the only useful spells in the tier. The issue is that the spell is basically a watered down version of cascade. It is on a shorter CD so I would expect it to heal for less. This isn't the problem. It is the sheer time it takes for it to bounce everywhere. Right now standing on PTR there are 30 people around me for it to bounce. It will bounce off 1 person then the dummy then another person and so on. Doing this 7 times it takes between 7-12 seconds for it to bounce. Essentially making it fairly useless for burst healing. There was actually a few times where it came off CD while it was still bouncing.
It just seems like it should bounce quicker to make it more effective. It looks like a spell you will use on CD since it is free.