Got to try one out over the weekend and I have to say I was really impressed, especially at that price. Plus you know it's okay when the wife says, "That sounds great. I think you should buy it right now." All three Leslie settings offered very useable sounds. The tap ramp up and down is a nice feature. Stereo in as well as stereo out however running it in stereo at GC never occurred to me, doh! The downside? The Tone Core pedals are really quite ugly. The knobs seemed a little flimsy. Other than that, well worth the money and I would definitely choose the Roto-Machine over the high-end boutique Leslie simulators. To quote the salesman at GC, "Dude, that pedal is really rockin'!"