I just recently LA a quilt with it and it was so nice. Soft, silky and beautiful drape, even when very heavily quilted it did not become stiff. But that is all I can vouch for as this was not my quilt so I don't know how it holds up to use and can't say anything about it bearding.
As far as it being "green". While bamboo grows quite quickly and is considered a sustainable source, it is my understanding that the process of turning it from plant to fiber (batting or cloth) involves a lot of nasty chemicals so the processing negates any "greeness" of sustainability and renewable source.
I do plan on using it again as the drape was just wonderful on it.