I am not a designer or an artist, but I have been using Affinity Designer on OS X for almost a year and recently purchased Affinity Photo as well. I cannot say enough great things about both of these products!
Affinity Designer for Windows is now FREE in BETA
I am super excited to see this app coming to Windows. Affinity is powerful, reasonably (and most important perpetually) priced, and is really giving Adobe a run for its money.
If you made it this far, you should probably follow me on twitter. 🙂 Follow @levlaz