Purchased with the foam tip, I need to pump it at least twice to clean one wheel. Seems to only foam good when the fill level is at a certain point. Once below half the foam produced from a full pump is very minimal. I haven’t used the IQ or any other foamer, but its not horrible for $20
I use this, along with the foaming nozzle, for N914 waterless washes. Has worked flawlessly for the last 6 months of steady use. Provides an active, medium-wet foam when N914 is mixed at its 1:128 ratio.