Absolutely! I love this software. Very powerful and easy to use, and sounds fantastic. It depends on what you want it for, deciding which version to get. Cre8 gives you full functionality, but no editing of stereo tracks, just playback, and only 8 tracks at a time. Studio is ton of tracks including stereo editing.
are you talking about taking two vocals that are out of tune and making them a good unison? For that you can't beat Melodyne. Honestly, whatever you use it for, it will sound more natural than any other software. That's why some of the sample libraries now use their engine for lyrical manipulation.
I use it to bring all my vocal parts in to tune when there are some dispcrepancies ( which, of course almost NEVER happens ) It works like a charm.
You can not only fix the pitch, but have great control over vobrato and any fluxuations insode the pitch. I had hit the "perfect" note but had a small dip in the middle. I just twaeked it and you would never know!
I have also changed my mind on a vocal voicing and instead of resinging 8 parts, I just changed the notes in Melodyne. Flawless.