Ok, I'm almost about to lay down cash for a:

TC Helicon 'VoiceWorks' Vocal Processor/Harmonizer: http://www.tc-helicon.com/VoiceWorks

At $699 (street price) it's not cheap, at least for me, so I want to find out if it's worth the $.

I'm also curious what additional features & improvements it offers compared to the Digitech Vocalist Workstation EX (which I previously owned) and the Tyros' built in Vocalizer. The thing I really liked about the Digitech Vocalist Workstation was that it's small and can easily sit on a table top or on the keyboard itself affording convenient access to its LCD screen & controls: sliders.

The onboard vocal harmonizer built into my Yamaha Tyros works & sounds great for 'live' performance, but in the recording studio, its weakness quickly becomes evident (quick to distortion and/or harmony voice drop outs). In addition, for studio recording I want to record my vocals discretlely from the Tyros independently from the Tyros L/R audio outputs. I want to trigger the vocal harmonies via my Tyros keyboard (via midi) and assume that it's easy to configure the "VoiceWorks" to recognize the auto accomp chords I play on the Tyros in real time or from the song (with auto accomp chords) I record on the Tyros' onboard sequencer.

Being that the 'VoiceWorks' will mostly remain in my very small studio, but taken out occasionally for especially demanding venues, I'm also searching for a small & light as possible (preferably single space) rack to store the 'VoiceWorks' unit in. Any ideas?

I'm looking forward to hearing from people with experience with the VoiceWorks. Thanks, - Scott