Greetings!
I've just recently picked up a version for Affinity Designer for Mac and so far, I'm very impressed.
A few things I've noticed doing some routine work
1) Line segment isolation is a pain currently. Would love a simple "eraser" tool that automatically selects a line segment between points, isolates it, (opens the path if it's in a closed path), and deletes it.
2) Bisecting closed paths (loops) with an open path should automatically create new shapes (ex, bisecting a circle with a simple line should (if we want) create two new half-circle shapes). This makes filling in colors MUCH simpler. The current workaround is a little silly.
3) The pen tool should automatically join paths unless specifically specified otherwise (shortcut or menu option) - sometimes I may use an anchor point as a reference point for other shapes... but sometimes, I just want to join some paths :)
I'm fairly sure these aren't new requests as I've seen other users complain about these particular issues.
Amazing software to be sure. I'm considering Publisher as well but I might have to hold off till I get a better feel for aforementioned as these simple concerns are a huge time waster in the current iteration.