Folks, I am getting ready to upgrade to a better reverb unit (I use a Lexicon LXP-15 at the moment), and I've narrowed it down to either the Lexicon PCM91 or the TC Electronic M3000. I don't have the ability to A/B them and I'm really interested in finding out what everyone thinks of these units. Of primary interest to me is how they sit in a mix, bang for the buck (excluding manufacturer hype), and any quirks that I should be aware of. My vocal path consists of a Lawson L47MP mic through a Vintech Audio X73 pre(love 'em both!).