I had a truly terrible experience trying to drop Adobe Creative Cloud. I ended up paying a monthly fee all the way through my yearly anniversary, then making a phone call to cancel in a specific window to prevent my subscription from rolling over.
I love Illustrator, miss it more than all the other Adobe apps. Hoping Adobe has changed their cancellation policy, and that Illustrator for iPad ships with a full feature set, offers a standalone subscription like Photoshop’s $9.99 a month.