This sort of resonates with me.
I use emacs extensively, but I started using omnifocus years ago and that is what I still use. The features for me are: just about perfect sync across devices. self-hosted data. enough sorting and prioritizing features.
But I will say around ios 7 timeframe they drank the apple Koolaid and changed just about everything in the app - and most were meaningless look-and-feel changes. Just about everything else in the app was negatively impacted.
to think of putting my data - the data I run my life with - into something that will only ever improve over time is very compelling.