I'll start. Did you know you can run a headless version of JD2 on a raspberry pi? It's not the greatest thing in the world, but sometimes its nice to throw a bunch of links in there and go to sleep.
As long as you have your quality profiles set up correctly they very rarely grab a bad release, I've maybe had to throw out 3 movies and one season of anime it grabbed during the past year I've been using a full *arr setup combined with jellyfin and jellyseerr.