I was a Finale user from the very beginning. In fact, I was a beta tester for new versions for years. When Finale died, I made the switch to Dorico. There is a learning curve, but I've gotten better at it over the few months. It is tougher to do some things compared to Finale. Formating parts is a pain compared to Finale and getting the sounds correct (especially the percussion maps) is beyond frustrating. The biggest issue for me was inputting notes. There is nothing like "Speedy Entry" in Dorico. There is a method that is close, but it isn't as easy to do. Getting the Stream Desk XL made a HUGE difference (look it up, it's fantastic). It still takes me longer to do everything on Dorico. I've never worked with Sibelius but I know those that have didn't like it. Dorico does have a full feature demo you can use before purchase. Give it a try.