To the surprise of no one, I've migrated back to Things 3. The Apple Reminders experiment was a great learning opportunity - I discovered that I truly am repelled by visual noise and clutter, and I really value the separation of Work & Personal but wish to maintain all inside a single tool.
Things is still the best solution for me given these learnings. I still use Apple Reminders for actual reminders (such as to pick up a package from my building's front desk when returning home), and non-actionable shopping lists and someday/maybes (trips to take, restaurants to try, movies to watch...), but Things is where I continue to do my project and next action tracking.
Below is my current setup, which hasn't changed all that much. It's pretty simple, clean and easy to maintain.
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