I just got mine.
My initial first impression are the composite video quality is poor, the composite standard composite cord is to short, and I wish the single USB was a double.
I ordered an additional composite cord that is longer and a VGA shield that I haven't tested yet. Because there is only one USB port, I need to go to a thrift shop to get a USB key board with a built in USB Hub.
In the short time I have played with it, I think for most users it will be a good option for embedded devices like digital signs. It is clearly designed for use with a TV's.
I have been working on an idea to build a low cost, low import, computer lab and this may fight right into my planes. The Raspberry Pi line up offers a lot more, but at this price point the fact that wifi is included may make this worth investigating.