Scott,
As you probably know Wietse & I switched from Korg iH to the TC VoiceWorks about 6 months ago.... and we love this machine !

We use it on stage with the 3 button switchunit (operated by Wietse)
Wietse has a great voice and this is probably why the harmonies absolutely sound NON-robotic. (if set at the right levels)

I hear many demo-recordings where the amount of harmony is far too high..... sometimes they make the original voice 'invisible'.... very very wrong !

We are very pleased with this VW because of quality and features. (pre-amp, phantom, noisegate, dynamics, EQ's,reverbs, pitch correction, harmony-hold etc)

Dan01's Voice-Prism design is slightly older and misses pitch-corr and harmony hold as far as I know. I think the VW sounds better and is more compact.

Roel