Hey there mate! As one who just purchased a vortex, I will try to describe my first impressions. To preface, I must say that I demoed one of these a year or so ago and was totally unimpressed. I couldn't get it to sound good for anything at the music store with someone else's setup (and a guitar I didn't like). This summer my brother bought a unit and has been doing some really incredible things with it. So I finaly broke down and got one. FIRST IMPRESSIONS OF A VORTEX It is weird. Not like other effects. The presets suck without tweeking (especially the MIX parameter) and proper stereo set-up. The interface is actually simple and somewhat intuitive: Since I am used to completely unintuitive, awkward interfaces like an R8M or a DX7 it took me a while to realize this. With tweeking, it is capable of some of the coolest sounds are I have ever created. Can sound like a complete pedal effect layout gone quite crazy. Way more interesting than the typical DDL/reverb/multi effects I've used. Then I tried morphing; Whoa!! I've never done that before! Next I plugged-in an expression pedal and things got really twisted. Between morphing and the real time expresion pedal control, I know of no equal effect unit. (I've used an ART SGX2000 with the x-15 MIDI controller w/expression control, etc., but that is apples to oranges) Sounds like an orchestral mix between simultaneous envelope filters, delays, and modulating flange & chourus effects. Allows me to play the effect as much as/(and as if it were) the instrument(s) This is going to take a long time to figure out. This is going to be fun to use for a long time! Bottom Line #1:For $150 what do you want? THIS THING ROCKS!!!!! Bottom Line #2:I want another one.