By default, some maps aren't enabled (color, height, rough). After enabling, you still need to set up the channel mapping because they mostly default to the diffuse map once enabled. I'm not even sure if I plugged them all in properly.
Also of note is that you can't change the colors. It doesn't advertise that feature but I figured I'd let people know if that's what they were looking for.
All that aside, it does look pretty nice!