Summary: Picked up one of these for a HTPC and so far I am happy. It is finicky with RAM (must be 1.35 LV Sodimms and must be 1600 or less speeds). I couldn't get 2 x 1866/8 GB sticks to work (only one would work at a time in the top ram slot). Driver package is available directly from Intel. My only big problem has been the HDMI compatibility with my older TV.
Pros: Super small size and super powerful, quiet, fast
Cons: RAM is limited by voltage and speed, price, HDMI compatibility