This was a great buy. Everything from the design, to the customizability, to the many features this pedal has is top notch. I've been playing around with it and have already gotten so much out of it. To begin with, the pedal features both standard and harmonic tremolo modes, when pedals with just harmonic tremolo go for the same price. It also has lots of uses thanks to the different curves you can set it to. The zig zag curve on standard mode is great for a sort of pulse effect, the sine curve on harmonic mode is great for a slow sort of swirly effect, etc. . It has a tap feature that initially I thought I wouldn't use much but has been quite useful. As a whole, the variance of tone you get from the harmonic mode adds a depth to the sound of the guitar that has allowed me play with more expression that what I could get before. I look forward to trying out all sorts of things on this pedal. Overall, top notch.