The ESS function is the selling point of this unit for me. While the range of other fx is not bad, it doesn't have any wow factors over other multi-fx units i have used. It would be a lot better if it had a loop function
Takes a while to really learn how to program it. I nearly gave up and almost sold it. However, once you got it down to right where you want it (the sweet spot), it isn't so bad after all, especially when hooked up to a tube amp. I hate the auto arpeggio function as well as the keyboard effects, as it does't track too well. Distortion's ok. I especially like the cross delay function. That's pretty cool.