The vocal is great; however, there are just a few places where you hear the vocal tuning artifact (that's a ProTools thing, right?) overrunning the syllable of the word.
I'm using
Waves Tune, which I've been quite pleased with. The UI is much too small, but it has a lot of features that cost quite a bit more in
Melodyne.
You're completely right about the vocal artifacts. Re-singing is really the best thing to do. I'm a
very scoopy singer, and even when the pitch is corrected, there are still timbre changes that simply can't be corrected.
There's an especially nasty bit on
"the only" that may convince me to fix it, but then I'd lose those nice comments people left on SoundCloud.

So against my better judgement, I'm going to leave it as is... For right now, anyway!
Thanks for listening and commenting!