Whats wrong with Windows 8.1?

I just hated it when, years ago, we changed from a DOS based system at work which I was very comfortable with, to a "new and improved" Windows system. What is this thing you call a "mouse" and why can't I just type what I want it to do and it will do it? But lo, as time marched on I adjusted, now through all the Windows OS changes and find that each has a little bit of a learning curve, but they all seem to work out just fine after after time passes. Trick is, don't keep the old and the new. Just go with the new and learn it, don't keep falling back to the old. People in general just don't like to change what they know for what they don't and have to spend the energy to learn something new. As for the "mechanics" of 8.1 being bad, I not a clue. It just works and works well according to a bunch of folks, but "stand by" cause it too will move on to another OS as soon as the market gets saturated with it. That is the way it seems to work.