I run a PT HD Accel 2 rig....lots of world class mics....preamps, compressors. Rarely does something come along that makes me go "wow." But RMX has me audibly again and again saying "Wow!" This is quite an achivement that will take a long time to tap into. $99 for the upgrade is ridiculous.....I mean stupid low for what you get. $299 is still a huge bargain. Wonderful Eric......God bless.