Interested in where you landed with this. I too got fed up with Things, ended up trying to use another tool, and found myself floundering for months. I was excited about my new tool for a while and then it started failing in lots of little ways.

I just tried out Things 3 and realized that they not only refreshed the UI, but also improved a *lot* about how it works in very little, subtle ways. Have to say it's good to be back.