I kind of like it, but I think it’ll only be useful for me at the beginning of a composition before I ultimately bring it to Dorico. Yes, typing may be faster, but handwriting can be more contemplative for me.
I bought it a while back, and last night I tried out the new version. I think overall the recognition is better, and the annoying screen tearing bug is finally gone. However, sometimes it goes unresponsive and crashes on me, even when writing relatively simple piano music. (EDIT: They seem to have fixed that in a bugfix update)
You used to be able to clarify a “Pending Bar” (a bar that failed recognition) by tapping on it and selecting some disambiguation choices, but that feature seems to have been removed—now I have to rewrite the strokes that I think are unclear, or otherwise rewrite the entire measure.
It performs some minor engraving adjustments, such as stem direction and note spacing, but sometimes these can actually get in the way. For example, suppose I try to write two notes in the two middle spaces beamed together (i.e. an A and a C in treble clef). If StaffPad accidentally interprets the beam as a slur, the notes will be quarters, and therefore have different stem directions. If they were the same stem direction, I could connect them together by drawing the beam in, but in this case, I have to either erase the notes and rewrite them, or change a note’s pitch by dragging it, then draw in the beam, and change the pitch back.
I think StaffPad is suited toward sketching. Write what you want, and StaffPad will try to convert it if possible, or just leave it alone if it can’t. It’s like digital manuscript paper. Dorico, on the other hand, is suited toward publishing. Write what you want, and it will immediately be laid out and spelled following the notation and engraving rules. It’s a serious production tool. The difference is like Paint versus PhotoShop, or WordPad versus Word, or iMovie versus Final Cut Pro.
The new ScoreSync feature is actually quite interesting. Not long ago this would be a fantasy: to send your score to everyone in the room, who each sees their own parts, updating edits in real-time, with a synchronized metronome and automatic page turns. For a well-equipped ensemble, I guess StaffPad may actually be useful at the end of the composition process, as well as the beginning.