it depends on you, you can use it on any 4 wire humbucker. Just remember to convert the color code if it isn't Seymour Duncan. Just be aware of out of phase in the middle position.
You could use it in just the neck if you feel like it, or go nuts and put two in a guitar like Joe Gore (Tonefiend) on youtube did like so , this is using two of them to their full potential.
firstly the blog to go with it
https://www.seymourduncan.com/tonef...roject-phase-2an-insanely-versatile-les-paul/
now it in action