I used Adobe Illustrator from time to time, didn't really like it, and was not willing to pay $20/month for software I rarely use. Normally I'd use a foss app, but I tried using Inkscape and unfortunately it wouldn't run very well on my machine, so I bought Affinity Designer.
Affinity is just as good as Adobe in many ways, runs really smoothly and I liked it so much that when they announced V2 (paid upgrade, but at launch had a nice big discount), I just paid for the full suite as it was such a great deal, even though I'm unlikely to even use publisher or the iPad apps that all came with it. Definitely worth the money, and happy to support a company using the traditional buy once own forever model.