My band has now gone studio-digital, so I had to get one (as in: don't be the only Luddite, not as in: I-gotta-get-me-one-of-these). The effect on my playing, our tightness, my ears, and the poor guy who didn't get one yet has been phenomenal, electric even. Within a couple of days we are in a new performance league. Without exaggeration, the new set-up (1 x P16-I and 4 x P16-M) has transformed the quality of our rehearsals and recording sessions. With good quality noise-blocking headphones, the P16-M allows individual mixing to suit each player's taste and prevents the external reflections bouncing around the studio from masking the purity of the sounds being recorded and played to. Fine adjustment of the instrument channels takes a bit of time, but the effort is worth it. All in all, a nice bit of gear and well worth the investment.