Used it for a hour mate so far I've been quite busy.
I've geared up the iPad, iPhone and Mac to all share everything and use "handoff" so I can start something (email or whatever) on one, and carry on with another.
Can use iPad or iPhone as remote device for Mac.
They all connect to Apple TV and Xbox too (from what I can tell, YouTube and whatnot) so it's another cool piece of tech I'll waste money and time on pmsl
It seems well built though and already got 3500 tunes on it and all my apps etc
I'll Learn how handy it is to have over time I think when I've noticed I've not got the Mac out or something.