Beakybird... I have never heard the Harmony M... I had a Digitech Vocalist Live Pro which is their top unit and I like this a lot better. If you go by the old saying you get what you pay for then it should be better than the harmony M... $800 vs $300 So it should be better....

Mike- make sure you shop around... I got a great deal thru SameDay Music. They beat Northern Sound and Light by a fair amount..

Ron