I prefer stuff from the 90s which lays it all out in clean, simple, plain text. The Sonarr UI is convoluted and information is obfuscated for the sake of flashy menus, animations, expanding branches and what have you.
I can click on MYthbusters in sickbeard and on the resulting page, without a single click, see each and every episode, ever - if I have it, what the name is, etc.
It's a generational thing, younger people seem to like the ghastly obfuscated user interfaces and software with unlabelled icons, as we all know what each and every icon represents.