I thought this was an interesting post that I would share: Ubuntu on 2013 MacBook Air
It talks about running Ubuntu 14.04 LTS on the 2013 MacBook Air. Wifi works, graphics work, etc. Awesome. It also has some performance metrics.
My kids have all used Ubuntu on various desktops and laptops. They are quite used to it. When the Windows hard drive fails due to “oldness” or I get tired of having to update the antivirus/malware/anti-spamware junk, I get a new hard drive and install Ubuntu. I then set up user accounts and off they go. Well, almost as easy as that. I usually have had to install Java and Flash (which has in most cases been replaced by HTML5).