Coming from PS, i think Affinity Photo is really catching up with its big competitor. A few things are missing in technical terms, but also some kind of a software inherent culture which is mostly communicated through its interface.
Really important for me:
- Layers: controlling visibility (why not on left side together with lock icon, same style as channels, turning on of by paint over) ,
- Layers: copying selections into masks
- Layers: linking unlinking for transforms
- Paint Performance.
- UI: less glitches annoyances (Buttons missing, inconsistent icons (check for layers, eye for channels)
Also important:
- UI: concept often not clear, e.g.: New document: templates take 80% of space (Architectural presets?), a page orientation ?, therefore Aspect Ratio lock is missing, why use page/document terminology instead of image, adding new preset hard to find.
e.g.: Preferences: icons really needed?, why not just a 2 column style like most other apps.
- UI: basic colourswatches (FG/BG) always visible, can be really small.
- Consolidated transform perspective tool, one tool for all transforms.
- Reasonable key maps e.g.: changing brush size needs 4 buttons/keys pressed at the same time.
- Right click context sensitve menu was nice.
Not so important, at least for now:
- New Features
- Fancy Features
- AI Stuff
- Extras like: Templates Presets Brushes, Assets