Another newcomer - I've been a user of Serif PagePlus and Photoplus for a long time, and have recently moved to Mac. So I was thrilled to see Affinity being launched.
I use it to create print and website stuff for small arts companies. I'm on a steep learning curve having moved from Windows to Mac AND started on Affinity, but so far really pleased. But like others, I find the very dark GUI and the small icons quite stressful on the eyesight. I've happily discovered through these forums that I can make some amendments, but would still like more clarity on icons. I'm sure that when I'm more familiar with the layout it won't mater quite so much.
But overall - so pleased that Affinity has come along.