PhotoPete,
I'm looking for software to help me manage and edit my photos. Aperture, while not perfect, did a lot of what I wanted and I was pretty happy with it. Photos, for now, looks like a big step back with the possible exception of the better cloud support.
I have to say that I worry about Affinity Photo without a way to manage, display, and archive my photos. Once I settle on some piece of software that does this, most of my editing will be done there. The effort cost to use Affinity goes way up when I have to export, edit, then re-import.
It seems that Affinity is focussing on being Photoshop, but Photoshop has had Lightroom for quite some time now. Without this component, it will be harder for them to compete.
While I believe that Affinity can probably handle the database part of this problem, I'm not as sure they can provide a comprehensive cloud solution. Apple has a staggering amount of money in this and they have a huge head start.
It's why I suspect the best future for Affinity Photo is to fully integrate with Apple Photos. And this assumes both that Photos will continue to improve and that Apple intends to leave the photo editing to third parties instead of developing it all themselves.