VoiceLive Play : Fantastic device

First of all, this unit has best auto tune out of all that I tried (Boss, other TC devices), it is smooth and if set properly almost not noticeable, does the job perfectly. Finally crowd is not suffering because of my vocal mistakes. Harmonizer works perfectly with specific setup - I return only my guitar from mix monitor to VoiceLive AUX plug, don't rely on built in microphone to give you accurate harmonies. I use both outputs to mix board, in master mix output I send voice with effects, and in my in-ear monitors I send native vocal with no effects, so I can hear my real singing and correct mistakes on the fly. Unit is very sturdy, built like a tank, and very reliable, after dozens of gigs not once it failed. Presets are fantastic if you want to adjust them for specific songs that require special effects like robot, or places that require more or less reverb. All in all, best of it's kind for the price.