This is the first pedal I got (10+ years ago) and it's still in great shape despite some dirt and nicks and scrapes.  Lacks tonal control in my opinion, which is why I will likely go for the 535Q in the near future.  I was going to give it 3 stars but I'm bumping that up to 4 because it's built like a tank, reliable as hell, and I guess I shouldn't take stars off because of something it doesn't have.  It won't be my last wah but it's been a great first one; it works perfectly well and does everything it's supposed to do.  I'd recommend it for people getting into the world of effects pedals, and for people looking to begin understanding what a wah does to the sound of your guitar, but not for people who want more control out of a pedal.