I've played for 20 years and never have been into compressors. The only one I ever had was a Boss back in the late 90s and sold it after a year because I didn't understand it therefore didn't use it. I figured I've done some growing up since then, my taste has refined and my playing has excelled since then so gave a compressor another try. I'm going to have to spend more time with it I believe before I make a informed opinion, but my other guitarist friends have this on their boards and leave it on all the time. One of my favorite guitarist Justin Derrico uses the Ego also. Andy Timmons is another fav that uses a compressor, not sure which one but I know he does. So there has to be something to it. I understand that concerning a compressor, "Sustain" makes the soft, lightly picked notes louder and "Attack" makes the loudly plucked notes softer. It levels out the peaks and valleys. This seems to go against why I buy amps and guitars that are dynamic sounding. I vary my pick attack to get what I want. If I pick softly I'm wanting the notes to be lower in volume and cleaner and the opposite when picking aggressively. I find with overdrive it (the Ego) smears the notes together some; with that said one thing I did noticed that I do like, is the added sustain it gives me on leads. These are my first impressions so far. I really want to like this pedal and justify why I spent $200 on it. Any advice?