MV offers:
"Wrongful Correction
If you are out of tune less than 50 cents of a semitone, congratulations, AutoTune snaps you back to the pitch center.

If you are out of tune more than 50 cents of a semitone, even by going over a little bit, AutoTune snaps you to the pitch center of the next flat or sharp note, makes you out of tune even more.

Integrity Damage
Vocal expressions such as vibrato, legato, etc, would be detected as out of tune pitches, and trigger false positive corrections, damage the integrity of formant articulations.

Retune Speed Dilemma
Set too high, generates a robot like artifact. Set too low, won't do much work.

Graph Mode
Cumbersome and hard to use. Much less intuitive than Melodyne."

Just because it says AUTO on the lid doesn't mean you can't use it manually.
What you outline are also problems with Melodyne to some degree and are dependent upon the user. I use ReaTune & Melodyne manually so that I only correct what I feel needs correction. Any artefact that gets through is a result of my laziness. Though I might use the program to create an arty fact..but I don't.

Aiming for the centre isn't always a good thing


& then there's this which is quite revealing..

Last edited by rayc; 03/21/23 02:11 PM.
Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe