If Canonical completes their plan to replace X with Wayland in Ubuntu, I will give Ubuntu another try.
ADDED. I ran Linux for 13 years.
It will get you slightly faster compositing, though.
If you think that these are valid enough reasons to believe the usability of Linux is poor, I really sympathize with you. And all of this is about updating the system. When I can update Windows or OSX by just issuing a command like "sudo apt-get update && sudo apt-get upgrade" I will change my operating system.
I just want reliable feedback to say that my operation is running. It's fine if the hourglass is a windows thing, but how am I supposed to know an app is actually loading on linux then? Pull up a terminal, run 'ps -Af | grep synaptic"? Not very friendly.
But if we want to stick with the update example, try opening System Preferences on OSX or the Control Panel on Windows twice. Even on purpose. It's pretty tough to do. And yet it happens to me all the time by accident on linux all the time.
1. Taskbar yells that I have updates. 2. I click the notification icon. 3. Nothing happens. No hourglass. 4. Wait. 5. Click it again. 6. No feedback. 7. Two copies of synaptic pop up. One flips out because another copy is already open.
The analogous version of this never happens to me on Windows or OSX.
Sure it's not the end of the world, but when weird stuff like this happens more than once a day, it gets annoying. It's like having that toilet where you need to jiggle the handle.