I am extremely fond of Pixelmator -- I bought the original maybe twelve years ago, and Pixelmator Pro as soon as it came out.

I had access to Photoshop for years before that, but the UI always pushed me away, with too big a hurdle just to get started. Pixelmator got me over that hump, and I never looked back.

It's a great product that I use pretty much daily. I hope Apple runs with it and does great things.