First I need to tell that before this one, I bought Dunlop CBM95 CryBaby Mini Wah with intention to use it both on my guitar and bass.
That was a bad decision. It worked great on a guitar, but on a bass it was terrible. It cutted all the bass, it was unusable.
Now, with the white one, all the bass is here :) plus I do not need to turn it on and off. It's always turned on, You just activate it by moving Your leg. That is brilliant solution.
Can't remember when I was more satisfied with a pedal.
And for a guitar...well, I do not care anymore :)
Updates: After a mount of playing, I'm very satisfied. Only little objection is on a annoying squealing sound of a plastic while pressing the pedal.