I sing through it every night. I love the vocal processing and harmonizer.
I use a little reverb, and a small amount of delay. I edited the delay some to suit my taste. I adjusted the mic e.q. by boosting the high end some to add crispness. I don't use the compressor or limiter. You can save it all to one by overwriting one of the factory presets.
I generally use one harmony voice a third above the original voice. However on occasion I use most of the presets when called for by the song.
On version 4.0, you can press and hold the lead or harmony button to instantly access the screen. Then push Edit to make adjustments.
Turn the mic level on the screen as high as possible to avoid distortion.
DonM