After having a 2011 iMac for 3 years and running windows through bootcamp exclusively I finally got the "mac" thing. With the recent upgrade to yosemite I thought I would try again OS X. I had tried it with snow leopard when I got the computer but I could not get used to it. What I like: I like that I have multiple desktops and can have my mail client in one and the web browser in another, with just the flick of two fingers on the magic mouse. I like that I can have on my iPhone the web pages that I have left on my iMac. I like that I can see and answer my calls and messages from my computer. What I don't like: That I don't have control over my hard disks the way I used to have in windows. In windows I use total commander which is a powerful file manager. There are some similar looking utilities in OS X but none that works so good. I understand though that most users don't have the need for such extreme file management. My biggest gripe is picture management. I have thousands of photos. In windows I used acdsee to view them. It is a very good software, very fast and with good keyboard shortcuts that lets you browse through thousands of photos very quickly. The only alternative that I have found that comes close to it is xnview, but it is buggy and slower than acdsee... I can understand that a simple user needs just a web browser, iTunes (if he has an iOS device) and a word processor. A simple user doesn't need to manage his directory structure and files. He just needs space for his stuff. A simple user doesn't need antivirus headaches. And also a simple user doesn't have thousands upon thousands of pictures to sort and view. All in all I have spent the last 2 weeks almost exclusively in OS X. I still believe though that windows 7/8 is a more full featured operating system for the medium to advanced user that can manage it.