Pretty Good
A little hard to learn at first, but once I got the hang of it, it is fairly easy to use and exactly what I was looking for. Makes good harmonies and allows you to influence the presence of each part (though the default settings are less than desirable) and not only makes it simple to mix parts, but allow yourself to be louder or softer. Overall, complicated at first, though after playing with it for a little while, a great tool.
Deucehi about
Harmony Voice