From my perspective, VH should always be used sparingly, and not as an upfront voice that is equal to or greater than the lead vocals.

I have recorded several songs using VH, mostly on the bridge or in short segments and for the most part, it just adds to the performance. I've heard it used by others, mostly on other forums, and a significant number of those performances over utilized this feature.

The VH on the S-950, S-970 and Genos, IMO, are very good when set up properly. The Harmony-M doesn't require much in the way of setup, so the NON-Techies tend to think this makes those vocal processors better, which, IMO, is really not the case.

Good luck,

Gary