It has an amazing sound and you can do whatever you like in the vocals, make it sound from the deep with distortion or softly electric.
But in mine occasion, i just wanted for the sound like you speak in an old telephone that is amazing, as a sound but not for the stage...i was very unhappy when i press the ON button in the stage and everything went bad, it started to suck all the feedback from the monitors...I believe this is happened cause the EQ's, but when i fix the Helicon ON version EQ by the mixer, to sound super on stage, it wasn't good for my true voice (OFF version)...
I think that if you like to use it on stage you must have a very good sound engineer...unlike with me who trying to be an engineer b myself :P...
Good gredits for the building though...It is hard as a rock!!!