"With all these negative reviews, I thought it would be hard to get going, but I'm no slouch when it comes to technical stuff so I gave it a try. It was really pretty easy. I got it to work with two different raspian images (hypriot and the standard Jessie) by just adding a few lines to the config.txt:
The first line let's the pi send it more current over the USB ports, the other three set a manual resolution for the HDMI. These are standard pi configuration variables, and needed for most bare monitors."