I don't care if V-Vocal is functionally identical to X1. All I want to see is a version of V-Vocal that doesn't crash with monotonous regularity. Currently, if I make a V-Vocal edit, I must bounce it straight away. If I leave live edits in place, I will eventually crash. The more edits, the more likely the crash.
The real power of V-Vocal is in the manual manipulation. The auto-correction is average, but as a tool, when used sparingly, it can be very, very good.