Apollo was made by someone who used to intern at Apple and it had that feel, imo. It was intuitive, thought-out, and functioned flawlessly. I know you’re an Android person, but take all the positive buzzwords around the Apple product philosophy and apply it to a Reddit app.
The big things and the little things. Lots of gestures - hold on a comment and drag it up and it’ll upvote, hold and drag down, downvote.
You could even have it display the current weather at the top when you were in a location-specific sub.