I bought this Wah-pedal because of its small size. It is quite nice that it doesn't take up a whole lot of space on the pedalboard. I Only had room for a pedal this size, so when with this one instead of the full size wah. So definitely a plus on the size.
The sound is also very nice. You have control over volume and Q. This gives you the opportunity to have a slight boost which is great if you plan to solo with this.
The Q control allows you to really customize how you want it to quack, which makes it useable for many situations.
The automatic bypass function works great. Just start using it, do your thing, lift your foot and your back to your clean signal. Nice little thing.
The only downside to this pedal is, that it takes some time to get used to the size under your foot. You won't be able to control it just as precise as with the fullsize model.