I have a pair in a cheapo guitar (Squier Esprit - squier version of the Fender Robben Ford model/Esprit). They sound good. I wanna do the rewiring though to vintage specs. I hate that my CTS pot has no change in volume till you get down to around 2 or 3. Mine are upotted and I have no problems (yet) w/ feedback in a chambered body.
I can't really say how they compare to other pickups though because I don't really have anything close to compare them to. I have a late 70's LP Custom copy that is all mahogany w/ Harmonic-Design pickups init, but those two guitars sound completely different from one another.
I would say that the LP Custom copy w/ Harmonic-Designs are really full w/ cranked, full mids. The pickups are great for jazzy stuff (clean) and metal, surprisingly enough.
The Sheptones in the Squier Esprit (not mine, but you can see what the guitar looks like here:
https://i15.photobucket.com/albums/a392/Stewz/Esprit.jpg) are not good for metal at all. The tones remind me of the tones on Lenny Kravtiz's Always on the Run. I can get those LP tones real easy with this guitar & pups. Can't cop say the Beano or Bloomfield sound, but that's likely the guitar, not the pups (after all it is still a cheap guitar).
This probably doesn't help too much, but at least its something.
There's lots of guys over on TGP that have 'em.
