Outstanding performance both clean and distorted with tons of character. Of my three main guitars the 91' Gibson Les Paul was often confined to its case (the other being a Charvel Pro Mod and a 84' Tokai Goldstar Sound). Mostly because of the cleans to semi distorted bluesy sounds seem to lack headroom, clarity and percussiveness. I've had Gibson 490R + 498T (original), EMG 89's, Seymour Duncan Phat Cats and Duncan 59's before I tried the Seth Lovers, home at last!
Whenever I played something bluesy or clean before I picked my strat or Charvel, not anymore! These pickups sound the way you play them with a mid honk and a great openness. I recommend anyone who has a Les Paul to install these and get a Jimmy Page 50's wiring. If your guitar was a bit dull and only good for overdriven marshall type sounds, this will open up new worlds.
The only negative thing I can think of is that sometimes the neck pickup is a little dark sounding compared to the bridge but I guess that's what you get with this kind of vintage design.