I like cPanel, but I wasn't a fan of their recent pricing restructure, so have been looking into Plesk and DirectAdmin, not sure if I like either as much as cPanel/WHM.
I also use cPanel exclusively for the same reason and because I get it provided at no cost.
I did recently throw my toys out of the pram when I logged in only to find something unrecognizable and in my view totally unusable. After a complaint to my provider I was told there was an upgrade, it's the new default theme and if I didn't like it I could simply switch back to the old theme
cPanel, WHM, and Plesk are all industry standard control panels. So I think most people have used them at some point or are still using them despite the costs associated with them.
For mine at minute i use plesk for quick actions but backend is run via multiple things so most the time im running terminal commands to get things done