i use bac-out for some spotting in paricular food spills here's a cotton and silk chair seat with ribs and BBQ sauce spilled on it a little bac-out, dwell time and an upholstery tool it's not for everything ...if this helps?
I use their prespray for custy's that care about chemicals. It works well on light to moderate soiling and I charge extra for it. Still break out the hard stuff for heavy soils though.
I use their stuff for most of my cleaning and think it works well as do my custy's who are looking for the green option. Bokleen also has a soy based degreaser that is GREAT. I have no problem with the prespray, but I rarely do trashed jobs. Try it...see what you think.