Your mileage may vary. Give it a try, it’s worth having around. I dive into every so often and force myself to try to learn it.
I have yet to find myself in a scenario where I could entirely replace/remove Adobe from my workflow, so why bother.
Some of the things listed below are my personal frustrations, mostly due to my lack of experience with Affinity and, oh I don’t know, 17 years with Illustrator. ¯\_(ツ)_/¯
Their color picker sucks. You have to hit a small target in the color palette (small swatch not the eye-dropper tool) then select and hold for the picker, and then after selecting the color, GO BACK to the damn swatch to apply it. Careful you don’t have stroke selected, you might have to rinse and repeat. The hit-zones for these controls are obnoxiously small, making this a very tedious. This task is quite simple in AI, PS, Sketch, etc.
The layers are designed awkwardly, and if you’re familiar or comfortable with AI, PS, or Sketch, you will have a bit of a learning curve. One which, to be fair, I never got through. The selection behavior is not as intuitive as say AI group selection would be for seasoned users. Opening other peoples AI files or SVGs was/is a total nightmare for me.
Masking is weird, as is drawing with the pen tool. A corner tool, really…? The way you set anchor-point types is somewhat unnecessary for me, as are the anchor actions.
If you’re an old school AI user, you’ll have some fun learning how to ride a bike again. Admittedly their goal was not to recreate Illustrator, however, there are some things that Adobe has defined as “industry standard” and I’m constantly struggling to un-f**k myself in Affinity Designer.
Have you tried switching to a Dvorak and Colemak keyboard? It’s kinda like that. Similar form-factor, minor differences that are a huge time sink when you have lots of work to do.
Learning Affinity designer, for me, has been a “weekend project.” If you’re anything like me, the last thing you want to do is spend nights and weekends learning a new tool to replace a couple tools which work quiet well. Sketch and Illustrator.