I bought the CAE wah a few years ago, but didn't like it. I ended up sending it back and getting the 535Q instead, which I like much better. I like the 535Q, but if I were in the market now I'd definitely try the Fulltone out before making a final decision. Here's a cut-and-paste of a post I made about the CAE:
"Years ago, before Dunlop had all of the different wah varieties, I had a standard Dunlop wah (with no side-kick switches, knobs, boosts, or anything else), and it sounded great. After years of going wah-less (I was sick of the abuse and overuse), I ordered a MC-404 from MF...specs looked good, and I figure you can't go wrong with Bradshaw. But I really didn't dig it very much. First of all, I didn't like the action of the pedal...too loose feeling. I like to be able to dig in a bit when I'm playing, and it just felt loose and sloppy. But more important than that, the wah sound just wasn't spectacular. I tried it with a few different guitars, in the effects loop and on the front end before the amp (Fender Hot Rod Deville and Vibro-King tube amps), and the wah effect just wasn't very pronounced. In certain registers, on both the red and yellow setting, in and out of the effects loop, you could hardly tell a wah was in use. It was really weird, and pretty lackluster. Also, the feel of it is a bit plasticky. My old standard Dunlop wah had a much better sound and feel.
This is the only item I've ever returned to Musician's Friend (and I've bought a lot from them over the years - they've always treated me very well). I exchanged it for a 535Q, and I'm much happier with that. About the only advantage the MC-404 has is the lights. The 535Q doesn't have them, but it sounds and feels much, much better. It has an adjustable kick boost switch, and with the other controls you can really vary the sound a lot to dial in your own wah sound. And the way I set it, you can certainly hear the wah effect in all registers when it's in use. I'm happy with it, and it's a great replacement for my old original Dunlop wah. I had to pay to ship the MC-404 back to MF, so I'd highly recommend you try one out in person if you're considering mail ordering it."