I bought this to connect to my home network and allow me to backup both a Mountain Lion Mac and a Windows 7 PC. Although this drive is advertised as working with both operating systems I was a little disappointed to find that the drive only comes with the Windows compatible software installed. Even worse, when I followed the official links to download the Mac software I found it relied on a piece of software made by google that was no longer available. As such this drive will not work straight out of the box with a Mac operating system.
In the end I reformatted the drive using Disk Utility on the Mac, wiping all of the Samsung software off the drive. This means I have lost some of their security options, which some people may want if they are using this as a portable hard drive and are worried about loosing the disk at some point. For me though I was happy that the security of my network hub would suffice and was easily able to plug the drive into the USB and have both Mac and Windows machines read and write to the drive.
The product is otherwise great. It is tiny, it doesn't seem to get too hot and doesn't whirr or click in any noticeable way. For the money I would definitely recommend it, and I particularly like that it draws its power through the USB cable so there is only one thing to plug in.