Has anyone worked with environmentally friendly wood stains? They seem to be quite a bit more expensive but I was wondering what the advantages to using a products like this compared to more the standard types of stains. Has anyone used this wood stain wood stain?

Gee you do not just happen to have a vested interest in that company do you?
Everyone wants to jump on the "green" bandwagon, companys do it and get away with far more profits.
If your really that interest in doing the "right thing" just use water based stain and poly. We know they work and are far cheaper to buy.