Someone locally is selling a Roland GR-20 Guitar Synth package so I got wondering about it and looked at a bunch of YT vids. The quality of the sounds are amazing!! Im absolutely blown away...I guess I had no idea. My initial evaluation is that the quality of sounds I'm hearing from the midi synth is of far better quality then any multi-effects pedal I've heard. Is that a reasonable assessment? So I guess what I need to know is what are the pros and cons of each? I can see that the midi system is a bit more involved with needing to install and tweak the midi pickup and so forth whereas the mult-effects pedal is just plug and play.....but that's not such a big thing really. Another question...my brief experiences with multi-effects pedals in the past have shown that there can be huge volume discrepencies between various effects.....is this a problem with a midi synth pedal as well? Mostly I'm blown away with the quality and accuracy of the instruments that I'm hearing with the midi synth pedal that I'm certain I've never experienced with a multi-effects pedal. Any experiences and opinions welcome...I'm at the ground floor of the learning curve on this one. This is the pedal. It's actually out of production. It's a nice compact size and isn't overwhelming with it's buttons and dials.