Wonderful pickups. The Retrovibe Stinger is a great preamp but this pickup is what gives my Sterling the sound of my old '78 Stingray, as I remember it.
This is an excellent upgrade (literally) at a terrific price.
Annoying things? Not being able to play something you want to. Luckily I've been playing long enough not to face that one.
Pub landlords who treat you as an annoyance when you're bringing people into their pub.
Not sure we'd use the final word you use in your last post. Just saying.