I plugged a mic into it, ran midi from the controller to the Midjay Thru to the Harmonizer, a 1/4-inch to a channel on the mixer (set flat)and everything worked great.
I didn't fool with the settings much, but it tracks as it should and sounds really good.
The vocal processing is excellent. I used an SM58. Didn't try anything else. I used the default effects (Hall) and the "Tone" setting.
Default midi channel is 1 so that didn't need setting.
I didn't even bother to set a keyboard split. I was going to but got started and liked the way it worked with it across the entire keyboard.
I made a couple of recordings. If I have time I'll try to post something tomorrow.
It's easy to control in real time. It has only two harmony voices unless you put it in Manual (Vocoder) mode. Most of the time I use only one above, and very seldom have a need for more than two. For my purposes it is excellent. It was great doing Happy Birthday in 3-part harmony Acupello.
It's a winner!
DonM