I've tried alot of wahs, and it's really all about personal preference, but I prefer this one.
Model Year: 2001
Price: $139.99 (new)
Where Obtained: Mike's Music Shop
It's just a big pedal, much like one in a car, except this one makes your guitar sound nasal. It's not switch activated, which is good.
As i've said, and will say again, I prefer a bass wah over a guitar wah. I use this during most of my solos, and so should you.
You put your foot on it, and press DOWN. That's the opposite of up, ok? Not hard at all. Two knobs to adjust the Variance and Volume.
This thing had a 10 foot fall (Don't ask how) and it still works fine, no scratches or anything!