Hi @judsonics, as a former Sibelius user, I can assure you, that once you will grasp how Dorico works, and what you can do with it, you will not regret for a second the switch to Dorico.
If you are willing to learn it, I suggest to go to the resources site and start with the Dorico First Steps Guides videos/PDF.
You can then look at the many other videos in the Dorico Youtube channel (also organised in Playlists, for example this Playlist with 11 videos about Note Input).
Then the detailed Manual (Web Help) that you can use as reference, with a great search functionality. I suggest to read the Dorico Concepts chapter, to start understanding the “philosophy” behind the software.
And you will find in this forum a wonderful community that is alway happy to help and to answer your doubts and questions.