The device works to a degree. It does not recognize HDCP and thus is basically useless. I downloaded a video from iTunes for my iPad. When I connected to my vga projector I kept getting a HDCP error and it would not play. Using it in the classroom with my iPad, it works with most of my appications and does a fair job.
I would not recommend it for most users. There are less expensive ways to go that work much better.
I hooked mine up to Apple TV in my classroom. The Apple TV worked flawlessly at home with just hdmi, but when I hooked it up through the adapter to my vga cable, it cuts out for about 2 seconds every minute or so. My projector gives a lost connection error while it cuts out. Hoping it is just a problem with too long of a cord (50 feet) like one of the other reviews said and I can fix it by hooking it up closer to the projector, but I'm dissapointed that I have to move my classroom around now to make this adapter work.