I have the hardware unit Voicelive 2, and the sound is much better from the hardware unit than from the plugin... They have another software version which is better, but it is a specialized system for another software/hardware unit, I forget the name of it.

If you want to use this for live, forget about using the plugin that comes with biab. You need the hardware unit, which is about $799. And like everything else, you gotta learn how to use it to get the best out of it.

Off the bat, the things to prepare for best use are:

1) use a hypercardiod microphone

2) use a solidbody electric guitar if you're playing the guitar. I know what you're thinking, I play acoustic guitar and I see the videos that they use acoustic guitar. Here's what happens, the mic picks up the acoustic guitar and starts harmonizing it. Doesn't happen with an electric guitar. Also make sure it's a humbucker guitar, not a single coil. You'll get a buzz. Just an FYI.

3) If you're going to use a laptop on the gig to accompany yourself with biab, try to generate the harmonies from midi. It works much better and gives you the ultimate flexibility. That's because you're no longer dealing with an audio signal to drive the thing. It works amazing from an audio signal and TC Helicon is to be commended for their work. But nothing will beat midi for perfection in this kind of work. Cause it's just computer talking to computer.

anyway, the good news is that when you set up everything right, and you learn to work with the machine, it sounds great.