I bought because I wanted to replace my Boss ph-3 phaser. I saw that Van Halen, Pink Floyd, and the Police all had used this pedal in different stages of their careers. One does get the phasing of Atomic Punk. You can use it for "Have a Cigar." It has that classic phasing sound. I don't hear a lot of white noise with the unit. It only has one knob, but it can dial in those classic sounds quite well with it. It does have a dc jack and works with a Voodoo Lab pedal power 2. I place it before the overdrives and get that wonderful swirl. It is a classic for a reason. You will not go wrong with this purchase.