Great sounding pickup. Lots of lows and crispy highs with crunchy low mids and scooped hi-mids. Very hot output.
Standard Seymour Duncan high quality.
Its only flaw, if I have to find one, is it's a bit noisy, being a single coil. But that's not a problem, considering it's supposed to be used in a pair, because the couple is perfectly hum-canceling. While if you're considering this pickup in a P/J setup, maybe you should choose a dual-coil J pickup (like the STK -1 or 2) to combine with the SPB-3.