Firstly, its a nice looking, compact, solid device.I have used it to stream video to and iPhone, iPad3, and an HTC One S. The video has been flawless, never a single stutter.  Getting pictures and other files on my devices has been flawless as well.I just used it in a desert racing environment and it held up superbly. I was able to download video we were recording in the field and photos also taken in the field, to it and then wirelessly stream the footage/files to the required mobile devices in the field.  Being able to stream to multiple devices without wires is a godsend.  Multiple people could watch the footage as needed, edits could be made and uploaded quickly.  Thanks to this little gem much of the work was done in the field. Unlike others I got over 10 hours usage on a single charge.The unit held up to the dusty environment without issue.I will agree with other reviewers that the included documentation was sparse, but a quick trip to Seagate's site remedied that.The device was very easy and very fast to setup.  The apps for the mobile devices downloaded quickly and installed without issue on the iOS and Android devices. I had a password protected wireless network in under 5 minutes...that is hard to beat!0PC operation via USB 3.0 was fast and easy, as expected.I don't have a single complaint about this device. In fact, I will add one or two more in the near future. 

Question: How to use the device?
Answer: Firstly , its a nice looking , compact , solid device . I have used it to stream video