After years and years of using Sibelius 1.4 for my notation software, I finally upgraded it to Sibelius 6. So far, with only a week of using the upgrade, I’m pretty impressed.
Before the Dynamic Parts feature, you would extract parts into separate files and then worry about syncing them back up with the score file if you made any changes in a given part. No more! The Dynamic Parts keeps all your separate parts within the master score file and changes are reflected throughout. Awesome.
Also you can track versions within a single file. I used to save about three or four copies of a file each day I worked on it, just “in case” I wanted to go back to before making a major change. No more!
I will need to spend a lot more time working on it to get fully used to it. They changed some of the keyboard shortcuts, so I make some input mistakes with my old keyboard habits ingrained.
But still, more than 10 years later, I have no regrets about switching from Finale. For most things, I find Sibelius to be vastly easier to work with.