I've been using EMG HZs for years, and they have their use. For metal and prog, which is my main gig, they fit perfectly. For all the other stuff I do (blues, classic rock, alt rock and pop) I have to work hard to make them fit the sound. I also acquired a set of EMG Xs which I use on a guitar tuned to drop A - which should give you a clue to where I've found use for it.
I'd agree that they are sterile, which is perfectly fine for some genres, but when I decided to build something myself I wanted something less clinical.