Just to be clear, I bought this used in the emporium. This is a great chorus unit with a lot of different tones. I find it to be among the most versatile chorus pedals I've played through. It's analog so it's fat and thick and rich and is true bypass so it doesn't effect the tone when it's off. It's got mix, depth, voice and velocity pots as well as a vibrato/chorus switch and a dark/bright switch. Voice is the delay parameter and this adds to the versatility. Many chorus pedals omit this parameter or give you a few switch settings. It's nice to be able to control this with a lot of granularity. Ditto for having a mix control. The mix control allows you to get some really subtle stuff happening which is also very cool. It differs from the depth control in that it allows some of the guitars straight-through signal to come through. The bright and dark switch are cool though the bright setting does add a little hiss. I've primarily played around with the chorus mode so I'll report back separately on the vibrato mode. It's interesting comparing this to the retro-sonic chorus. They sound totally different. There are a few settings on the red witch that approximate the retro-sonic but for the most part, there is little overlap. I will do a couple video clips of these pedals over the next week or two as time permits.