Let's hope that 'one big thing you've been waiting for' is the ability to easily and directly modify alpha channels just like any other channel... a request that has been around for years on the Affinity Photo forum - with absolutely no response from them.
A.Photo is a good application in many respects - but is tripped up by weakness in a few key areas. I have a copy, but Photoshop still reigns supreme for the stuff I do. I'll be interested to see what the Affinity crew deliver.
PS: I agree about the Ps / Adobe splash screens : )