Just started working with Sibelius today. Watched first 8 minutes of a getting started video (1 of 6 videos for newcomers). Then got impatient and decided to try to figure myself. I am able to put in 3 voices for the 3 voice fugue, but I keep needing to flip stem directions. And then it keeps adding rests as if I wrote a 4 voice fugue. I keep deleting the rests and it keeps adding them back in. Other than that it's going good. 
Lesson learned: I will watch all of the 6 videos so I know what I'm doing before I do anymore work.
Dammit.
I was looking for a reason to buy a new engraving program, but it's this same stuff.
Somebody please explain to me why these top-shelf bits of software don't assume we know what we're doing when we place notes with the stems and durations we want?
Yes, I know all about TeX things like LilyPond, but, seriously, that's just not good. Takes too long.
What do people like Angelo Badalamenti use?
Whatever it is, I'm just sticking to technical pencils w 2mm lead and staff paper.
ETA Yes, it is about the equivalent of the old Microsoft "Clippy" the "helpful" "assistant." Cubase SX, which I used as a DAW frontend a long time ago, was about the only thing that would do what I wanted it to, and typesetting is not it's main function. IIRC it worked fine.