Scott,

I've been using the Harmony-M since it first came on the market, and while it really does a fantastic job, I, for one, don't believe the audiences even notice that you are singing in harmony. I get lot of comments about my vocals, but NO ONE has ever said "Wow--that harmony really sounded great." It just doesn't happen. In many instances I've pointed out to the audience that the harmony is actually me singing and it's live. I've even done songs accapella using the harmony-M, and while the audiences loved it, overall, it really doesn't seem to have much of an impact on the overall performance. I sang Have You Heard by the Duprees on NYE, most folks loved the song, but no comments about the harmoney, which I thought sounded terrific.

Good luck on whatever you decide upon,

Gary