dont pay full price for it, it goes 20-30% off all the time (after i bought it :P )
its fine, there's really no need for soap when washing a car. i bought it for the kids to wash their yard toys. its not like it helps get sap off, it just forces you into a rinse cycle. i wax my cars every second year and clay bar every 3rd year, mainly because i dont have time to do more. road grime etc comes off easily with cold water at garden hose pressure and even easier washing by hand. in winter i use a weed sprayer with plain cold water in it and 80% comes off with one bottle. bubbles are more for our comfort. its more important to keep your sponges fat with water and dont touch the car with a dry anything until its been fully rinsed.
kids like it. its overpriced. it makes bubbles, provides the notion the thing is cleaner and it didnt leak everywhere.