For obvious reasons.... However, Seymour Duncan himself calls it his favorite humbucker that his company makes. What I find odd is that the man who helped design it and for which it was named (Jeff Beck) currently doesn't use it on any of the guitars he tours with, nor has it appeared on his signature Strat models anywhere...
Great tone all around, with a vintage vibe, yet a bit more output, but not so much to put it 'over the top' like most metal pickups. Yet versatile enough to be used for pretty much any style of music.... Still the world's most popular aftermarket Humbucking pickup...