Most people are fine with Windows, including myself. I find it a good business workhorse with excellent productivity features that I can rely upon, knowing that it will handle pretty much any task I throw at it.

Another factor vs Mac (for me) is that if something to happen to my ThinkPad while I'm at a factory somewhere in rural Uzbekistan, there is always a store in the nearby city where I can grab a Windows laptop for like $400 and continue with the job, and/or have my machine serviced.

Windows has enormous userbase, and obviously you'll hear a high absolute number of criticisms, especially considering that those who actively dislike the OS for whatever reason will take take their time to bring their frustrations online, and those who are fine with it rarely comment about it.