I recently went to the local EO distributor as suggested by EO to get the WAUD in gallons as I personally use quite a bit. Well I decided to buy some other stuff like, wheel acid and shampoo & wax. Yesterday I used the S&W for the first time and could not believe the suds and lubricity I got with the small amount I used. I had used 3/4 of the bucket and decided to wash the wifs car and squirted the hose in the bucket and it foamed right up, still enough to do her car. I don't think the GC I have been using for the past several yrs. comes close. I had liked the GC for the lubricity but the suds would always diminish and don't seem to suds back up from squirting the hose in the bucket. I know it's too soon to tell and only 1 use, but looks very promising especially at $7.38 per gallon!