Some software are essential. Windows, Linux, other operating systems. I live with them, coz I can’t live without them. I’ve spent most of my onscreen life in Windows. I’m comfortable with it because I am familiar with it.
From the rest, I like the ones that just work without getting in the way. They will stay hidden until I need them. Their features are understated. But I like when a software seems to read my mind and respond to my thoughts. I specially appreciate the moment when I realize how much less I have to work to get something done, through the use of this tool.