Just thought I'd say: This stuff is great. I've been reading about it for a few years, but was pretty skeptical. Until I picked up a new Brilliant Black A5. And was desperate to find a quick way to keep it clean between details.
This stuff did the trick. I've used it two ways. First was with two buckets. One plain water, one with 2 oz of EcoWash concentrate and water. Wipe on, rinse mitt, wipe on ect. Then MF dry. Wow-streak and spot free. About 20 minutes, wheels, glass, and all.

Second way was with 1 oz in a 25 oz spray bottle. Mist on, wipe off with MF, second pass with dry MF to dry. Same results, but took about 30 minutes.

Great stuff and so earth friendly-win,win!