I got one of these the day it came out.
Yes its potentially more expensive than an Mini-ITX system. But it depends on your priorities.
For me form factor, and power usage, were most important.
This is my new setup: http://lloydsparkes.co.uk/wp-content/uploads/2016/06/CCaptur...
And for a development work station, with light gaming (I have an Xbox One for gaming) the performance is amazing!