It is a palm muting, chug dream. It is probably not given the versatility credit it is due but by no means would I say it is a versatile pickup. It is not good for cleans. It is not for anything other than heavier, tighter, faster response, articulate type tones and playing in all of those styles. It will riff like a champ and it also does the single string death metal lines wonderfully. Heavy tones with room to breathe sound great as well (Think Evanescence style).
I have been able to get good results (to me) by using it with amps that bring the big rock amp, (clearer gain, less saturated) sounds as well. I have used my Sound City, Wizard, Roccaforte, Suhr SH-100, Mako-plex and got great tones. While I could get the rhythm tones in those applications, the lead tones were lacking. If I adjusted for lead tones then the rhythm tones were not to my liking. Now if you did all your leads on the neck pickup and all your riffs on the bridge I could see it working with a lot of options. Its a fantastic pickup, just fantastic only at a couple of things...but if those things are you thing, you are in business.