I bought DaVinci Resolve Studio when it was version 14, it is now version 19. So I have upgraded from 14, to 15, all the way to 19 at No Additional Cost. The tutorials on Youtube are excellent, and there is a free Beginners Guide for v19 also...
I have/use Edius, Premiere Pro and DaVinci Resolve. There are many Youtube tutorials on each of these programs. After using the free tutorials I can now say in all honesty, that of all the editing software packages I have, DaVinci resolve runs...