If you are using Windows, prepare for a holy fuckness of problems...
We had a guy who sent it back to Focusrite for repairs because it wasnt working.. turns out its their drivers that works like shit with some computers, so they work for some, not at all for others.
I have the "desktop version" of the Saffire, and it took me about 4-5 days to get it working like it should.
Although, now that it works, its really awesome!
Another guy who bought one through our store loved it as well(The same one as you have there.).