Well, this thread shows that there's no mainstream view of JM pickups, that's for sure. Personally, the two I've owned were both pretty dull-sounding (stock Fender PUs). No really interesting treble, and a fairly non-descript bass, but amps can do a lot with that. But wow, everybody's making a groovy JM PU now, so that's changed. What I truly loved was the playability (other than the horrible trem) balance, and feel. Make me want to buy one now and mod the tone. As others have mentioned, the pots are huge in what does or doesn't sound good about JMs.