Dorico is not Finale and does not require any familiarity with Finale. I used Finale since its beginning and my experience with Finale has not helped me with Dorico. I've been using Dorico for about a year and a half and like it very much. Although I'm still in a learning curve, I've cranked out many scores and recordings with Dorico. It's excellent! I'm 81 years old, by the way.