Huh? Unity, especially with auto-hide is literally more out-of-your-way than any other Desktop Environment in any Operating System I can think of. (And I don't even like Unity, I like Cinnamon and Elementary which are very similar to the Windows XP/7 and OS X style desktop environments.)
I'm just really exhausted of non-specific "it's hard to use". (Keep in mind I was specifically talking about pre-installed, though the Windows/Ubuntu installers are nearly the same). If I asked someone to install iTunes in Windows versus install Rhythmbox in Ubuntu, I know which would be easier for someone who had never used either before. Go to a website, download an EXE, bypass the scary security prompt, walk through a six step installer asking about location, menu entries and more. Or open Software Center, type "music player", pick one and click "Install".
If "it's hard to use" because people are used to Windows, I throw my hands up, there's no way to reply to that.