I received my Eternity yesterday (I love the all black w/blue led look - it matches my black magicboy vibe very nicely). Haven't had a chance to really play through it for extended periods of time because I was feeling kind of sick the past few days, but my initial impressions are good. Have not A/B'd it with my old marshall bluesbreaker pedal mk1, but from memory, here are some quick comparisons: positives: the eternity seems slightly more transparent when bypassed with the bluesbreaker, I never had the tone control past noon because (at least with my setup) the tone would get too harsh. with the eternity, (much to my surprise, btw) I found that the treble booster is actually useable past noon. with the clip all the way down, using the eternity as a clean boost only, I found it performed very nicely in sounding only like "more of my amp." fattened things up just the right amount. neutral: seems to have a little bit more gain than the old bb1. (and slightly more bottom end when dimed). I will likely have it on the lower gain settings most of the time anyway except for when I'm feeling saucy. negatives: I only have one eternity pedal. I realize that this may not serve as a useful review since most people want to know how boutique pedals compare with each other, as opposed to production models, but I think it's just as important to compare them to cheaper pedals every now and then (I also don't have any other points of reference, so this will have to do). I'd like to note that I really enjoyed my marshall bluesbreaker pedal, it is not a bad pedal at all (in fact bobgoblin is finding that it is working nicely with his bad bob boost to achieve a "wondefully horrendous overdrive"). but the eternity just makes my grosh sound a bit fatter and is what I'm going for nowadays. bottom line is that I'm happier with the eternity and don't have the need to go order a timmy, zendrive, rc booster, etc.. looking for that elusive last part of my tone. this is it. (now I just need to find an amp) check my signature for equipment used.