Anderton
Don't forget that for tough cases, you should set Melodyne for Percussion mode.
I rarely use Melodyne. I was stoked because Sonar could do the tempo mapping now...and it's just too easy. I've been on the fence about upgrading from Editor2 to Studio4, but I don't think I'm going to spend the $150, even if the deal is sweet. I just don't use it really. But the tempo mapping...now in Sonar...that's another issue. I gets lots of tracks from friends that record on their laptop or whatever...no click, and the performances are usually quality enough to use and have fun with adding tracks...drums, etc.
Plus...this is going to just let me noodle and then keep something if I like it. No worries about tempo drifts. If anything, it'll add to the feeling in most cases...