We tried out all nine pedals and all worked "as advertised". Our favorites are the Vibe, Tremolo, Chorus and Metal II pedals. Vibe has a good speed and intensity range--from super warbling to very subtle pitch changing. Likewise Tremolo can go from nothing all the way to a very intense, "square wave" on/off tremolo effect using the Hard/Soft switch. Both Tremolo and Pitch produce very clean sound without adding noise. The Chorus model does everything I've heard other pedals do costing much more. It too is clean and beautiful sounding. Lastly, Metal II takes any guitar signal and puts right it into the sound of a huge stack of amps set on 11. The tone is exactly right for machining metal without doing any fiddling.