This is an amazing graphic application for Mac owners (at the time of writing Affinity Photo is Beta for Windows but not Affinity Designer).
Affinity Designer is a professional application with a one-time fee (currently only £39). So it cost you only 1 month of Adobe Suite subscription. I am not a fan od subscriptions and this is was a reason for buying an expensive Mac. I have just done a quick calculation and the software alternatives I was getting with a Mac was worth buying it.
The video tutorials are available exclusively on the Vimeo channel:
https://vimeo.com/macaffinity/
At the time of writing the previous tutorial has been removed as links changed. Please refer to the links above.