I take it as the standard wah-wah that defined what the effect is. Build quality is great and the sound is legendary. Mine has 19 years and still works perfectly without any repair (just minor lubrication). Design could be improved a little though. The switch is a little hard to turn on/off and the access to the power input is too deep, making it hard to plug in most 9v fonts without adapters.
I use my Original Cry Baby Wah to make the heaviest, hardest, meanest dubstep EDM sounds. Along with my Eventides and talkbox it forms the core of my guitar-synth rig and helped me create the sub-genre of Dubstomp.
This is my first wah pedal and I'm having a ton of fun with it. It sounds great with both my telecaster and my casino. It sounds really great with overdrive or doing clean funk wah.