Great boost, but I really hear no difference with the pickup selection..
I love this pedal, gives a great boost and sometimes adds a bit of saturation. I like that in boosts, I use it more to really saturate my AC30. The only thing I have never understood is how the pickup selection works. I don't really care for that, but I give it 4 stars only because of that. Love the big chicken head knob.
I don´t know if my unit was defective or not, since I bought it second hand. However, I decided not to keep it because it was very noisy , especially when I put it on the 1 and 2 positions. It was impossible for me to use with my board. Since then, I replaced it with a TC Electronic Spark Booster, which is the best booster available, in my oppinion.