Tosin Abasi and Misha Mansoor in particular have really popularized the hell out of this chord, and for good reason. The open sound of the fifth combined with the subtle tension between the root and the second, often raised an octave to the ninth in the voicings they favor, creates a wonderfully unique sound, especially hen combined with distortion. At this point, simply because it so saturates the genre, it is even fair to state that the use of this chord will give you instant progressive metal sound.
To learn all about this chord, including multiple voicings and applications, check out the following video:
Thanks for reading/watching, and I'll see you guys next time.
By Kevin Goetz